diff --git a/en/howto-streaming-telegram.md b/en/howto-streaming-telegram.md
index 155f89e..0837532 100644
--- a/en/howto-streaming-telegram.md
+++ b/en/howto-streaming-telegram.md
@@ -13,7 +13,7 @@ Copy Server URL and Stream key from Settings.
 
 Open `/etc/majestic.yaml` on camera and add the URL and the key into `outgoing` section of the config.
 
-**Note:** Dont forget add `-` sign before paramethers!
+**Note:** Dont forget add `-` sign before parameters!
 
 **Note:** `outgoing` section may affect another section addition. Remember it!
 
diff --git a/en/install-novatek.md b/en/install-novatek.md
index d49d2d3..b5e1434 100644
--- a/en/install-novatek.md
+++ b/en/install-novatek.md
@@ -6,7 +6,7 @@ For XM vendor boards with NT98562 and NT98566 SoC ONLY!!!
 
 ### Initial device firmware update
 
-**This section will be completed at the end of the research**
+> **This section will be completed at the end of the research**
 
 ```
 run uk; run ur; reset            # Flash kernel, rootfs and reboot device
@@ -21,7 +21,7 @@ run uk; run ur; reset
 ### Notes
 
 After you have finished flashing new firmware, please run `firstboot` command
-to format jffs2 partition used to store settings.
+to format `jffs2` partition used to store settings.
 
 ### Known issues
 
diff --git a/en/install-sigmastar.md b/en/install-sigmastar.md
index 0c0223a..1848fc5 100644
--- a/en/install-sigmastar.md
+++ b/en/install-sigmastar.md
@@ -33,7 +33,7 @@ run uk; run ur; reset
 ### Notes
 
 After you have finished flashing new firmware, please run `firstboot` command
-to format jffs2 partition used to store settings.
+to format `jffs2` partition used to store settings.
 
 
 ### Other info
diff --git a/en/installation-tftpd.md b/en/installation-tftpd.md
index 615484d..099bd49 100644
--- a/en/installation-tftpd.md
+++ b/en/installation-tftpd.md
@@ -11,9 +11,9 @@ these steps:
 ### Install Docker Composer
 Follow the [Docker installation instructions][1].
 
-###  Create Docker image files
+### Create Docker image files
 Create a file named `Dockerfile` with the following content:
-```
+```dockerfile
 FROM debian:latest
 
 ARG DEBIAN_FRONTEND=noninteractive
@@ -28,7 +28,7 @@ in.tftpd --foreground --create --secure --ipv4 --verbose --user tftp \
 
 In the same directory, create a file named `docker-compose.yml` with the
 following content:
-``` yaml
+```yaml
 version: '3.9'
 services:
   tftpd-hpa:
@@ -41,7 +41,7 @@ services:
 ```
 
 ### Start the container
-```
+```bash
 docker-compose up -d
 ```
 Docker will build an image if necessary and launch it in the background. During
@@ -49,11 +49,11 @@ building the container, Docker will also create `tftp/` subdirectory from which
 your files will be served. Docker acts as user `systemd-network` from group
 `input` to access that directory. If you want to allow saving files sent via
 TFTP to your machine you'll need to change ownership on that directory:
-```
+```bash
 sudo chown systemd-network:input ./tftp
 ```
 Alternatively, you may loosen permissions on that directory:
-```
+```bash
 sudo chmod 777 ./tftp
 ```
 Use your computer's IP address to access the TFTP server from other machines on
@@ -61,7 +61,7 @@ your local network.
 
 ### Stop the container
 To stop the container and free up memory just run
-```
+```bash
 docker-compose stop
 ```
 The container will be saved on your computer until the next time you need to
diff --git a/en/installation.md b/en/installation.md
index bba47e8..1154c86 100644
--- a/en/installation.md
+++ b/en/installation.md
@@ -1,4 +1,5 @@
 # OpenIPC Wiki
+
 [Table of Content](../README.md)
 
 Available Installation Methods
@@ -26,7 +27,7 @@ OpenIPC firmware installation using Coupler.
 --------------------------------------------
 
 Instructions for using [Coupler](https://github.com/openipc/coupler/) can be
-found in [the project's documenation](https://github.com/openipc/coupler/).
+found in [the project's documentation](https://github.com/openipc/coupler/).
 
 OpenIPC firmware installation via TFTP and UART, step by step.
 --------------------------------------------------------------
@@ -34,7 +35,7 @@ OpenIPC firmware installation via TFTP and UART, step by step.
 ### Step 1. Determine the System on Chip.
 
 The SoC includes the CPU core of the camera, as well as all the necessary
-periperhals such as the camera and network interfaces. For various reasons
+peripherals such as the camera and network interfaces. For various reasons
 (including the limited onboard storage space on most IP Cameras), the OpenIPC
 project currently builds separate firmware binaries for each SoC model.  **You
 must identify the SoC which your camera uses**, so that you can use the correct
@@ -65,7 +66,7 @@ retrieving bootable images from a designated boot server on the local network.
 most likely already exists in distro's repo, and you only need to install it and
 set it up.
 
-```
+```bash
 sudo apt install tftpd-hpa
 sudo sed -i '/^TFTP_OPTIONS/s/"$/ --create"/' /etc/default/tftpd-hpa
 sudo systemctl restart tftpd-hpa.service
@@ -108,33 +109,43 @@ or whatnot.
 
 Connect `GND` pin on your camera to `GND` pad of the adapter, connect USB
 connector of the adapter to a USB port on your PC, start a terminal emulator
-application and connect to your adapter. Set your terminal settings to 
-115200 bps baudrate, 8 bits, no parity, 1 stopbit, no flow control. 
+application and connect to your adapter. Set your terminal settings to
+115200 bps baudrate, 8 bits, no parity, 1 stopbit, no flow control.
 
 Here's a few command lines for various terminal programs with session logging. Pick your poison.
 
 #### screen
+
 Start a sessions with
-```
+
+```bash
 screen -L -Logfile ipcam-$(date +%s).log /dev/ttyUSB0 115200
 ```
+
 Use `Ctrl-a` followed by `\` to exit the session.
 
-#### minicom
+#### `minicom`
+
 Start a sessions with
-```
+
+```bash
 minicom -b 115200 -8 --capturefile=ipcam-$(date +%s).log --color=on -D /dev/ttyUSB0
 ```
+
 Use `Ctrl-a` followed by `x` to exit the session.
 
-#### picocom
+#### `picocom`
+
 Start a sessions with
-```
+
+```bash
 picocom -b 115200 --databits 8 --parity n --stopbits 1 --flow n --logfile=ipcam-$(date +%s).log /dev/ttyUSB0
 ```
+
 Use `Ctrl-a` followed by `Ctrl-x` to exit the session.
 
 #### PuTTY
+
 If you opt for a GUI terminal, namely [PuTTY](https://www.putty.org/), this is how it should look like:
 
 ![PuTTY settings screen](https://user-images.githubusercontent.com/29582865/207894192-c6f66401-7715-4aa6-bee2-8343aae6c0a9.png)
@@ -187,7 +198,7 @@ Most IP cameras nowadays are equipped with 8 or 16 MB NOR or NAND flash memory.
 You can check the type and size of the chip installed on of your camera in the
 bootloader log output. You'll see something like this:
 
-```
+```console
 U-Boot 2010.06-svn (Oct 21 2016 - 11:21:29)
 
 Check Flash Memory Controller v100 ... Found
@@ -199,7 +210,7 @@ SPI Nor total size: 16MB
 
 Another example:
 
-```
+```console
 U-Boot 2013.07 (Feb 27 2019 - 02:05:08)
 
 DRAM:  64 MiB
@@ -233,7 +244,7 @@ the values by `setenv` command (use IP addresses and netmask corresponding to
 your local network), then save the new values into environment with `saveenv`
 command.
 
-```
+```bash
 setenv ipaddr 192.168.1.253
 setenv netmask 255.255.255.0
 setenv gatewayip 192.168.1.1
@@ -294,7 +305,7 @@ If you followed step 2, you've got your own TFTP server serving files from
 `/srv/tftp` directory. Extract files from the bundle you just downloaded into
 that directory.
 
-```
+```bash
 sudo tar -C /srv/tftp/ -xvf openipc.*.tgz
 ```
 
@@ -304,7 +315,7 @@ So, we have a guinea pig, a camera with hi3518ev100 SoC, equipped with a OV9712
 sensor, 64 MB of RAM and a 8MB NOR flash memory.
 
 Connect to the camera via the UART port and access the bootloader console.
-Set the component parameters to the appropriate environment variables. Set 
+Set the component parameters to the appropriate environment variables. Set
 environment variables for loading the Linux kernel and the root file system
 of the new firmware. Set environment variables for the camera to access local network,
 where `ethaddr` is the original camera MAC address, `ipaddr` is camera's IP address
@@ -333,7 +344,7 @@ firmware. Welcome to OpenIPC!
 After the first boot with the new firmware you need to clean the overlay
 partition. Run this in your terminal window:
 
-```
+```bash
 firstboot
 ```
 
diff --git a/en/notes-for-resorting.md b/en/notes-for-resorting.md
index f691d02..b72d982 100644
--- a/en/notes-for-resorting.md
+++ b/en/notes-for-resorting.md
@@ -85,18 +85,18 @@ RJ-45 connectors and wires.
 
 * __YouTube Streaming__
 
-#### MiniHttp is the main streamer of the OpenIPC based system
+### MiniHttp is the main streamer of the OpenIPC based system
 
 It is important to tune configuration of MiniHttp by turning off unneeded
 protocols and features for better security and performance.
 
 Config file is located in `/etc/minihttp.ini`
 
-#### Debug mode:
+### Debug mode:
 
 ```killall -sigint minihttp; sleep 1; export SENSOR=`ipctool --sensor_id`; minihttp```
 
-#### Production mode:
+### Production mode:
 
 ```killall -sigint minihttp; sleep 1; export SENSOR=`ipctool --sensor_id`; minihttp 2>&1 | logger -p daemon.info -t minihttp &```
 
@@ -190,7 +190,6 @@ if(pinfo->mem->start = 0x20250000 /* address i2c-2 */) {
 ### Groups in Telegram related to development:
 
 
-
 ## Tools used in Research and Development
 
 [hisi-trace](https://github.com/OpenIPC/hisi-trace) --> tool to run Sofia inside
@@ -209,7 +208,7 @@ Different hack & mod related to IP Cameras forums:
 
 Below are some examples how to record video streams with various utilities.
 
-#### gstreamer
+### gstreamer
 
 * rtsp h264 stream:
 
@@ -219,9 +218,9 @@ Below are some examples how to record video streams with various utilities.
 
 `gst-launch-1.0 rtspsrc location=rtsp://192.168.1.10:554/stream=0 ! rtpjitterbuffer ! rtph265depay ! h265parse ! mp4mux ! filesink location=stream0_h265.mp4 -e`
 
-#### ffmpeg
+### ffmpeg
 
-#### vlc
+### vlc
 
 ## How to login inside original firmware
 
@@ -311,7 +310,7 @@ himm 0x0120E0110 0x60320000 > /dev/null; himm 0x120E0118 | awk '{print $4}' | dd
 himm 0x0120E0110 0x60320000 > /dev/null; himm 0x120E0118 | awk '{print $4}' | dd skip=1 bs=7 2>/dev/null | awk '{print "0x"$1}' | awk '{print "CPU temperature: " (($1-125)/806)*165-40}'
 ```
 
-`HI3520DV200 `
+`HI3520DV200`
 ```sh
 devmem 20060020 32
 ```
diff --git a/en/old-manual.md b/en/old-manual.md
index 296a88d..2a14359 100644
--- a/en/old-manual.md
+++ b/en/old-manual.md
@@ -6,7 +6,6 @@ Introduction
 
 This page describes OpenWRT-based firmware variant.
 
-
 ### Firmware features
 
 * RTSP, ONVIF, NETIP
@@ -51,13 +50,13 @@ Unneeded options can be turned off for better security and performance.
 
 To run `majestic` in debug mode:
 
-```
+```bash
 killall -sigint majestic; export SENSOR=$(ipctool --sensor_id); majestic
 ```
 
 To run `majestic` in production mode restart the camera or run command:
 
-```
+```bash
 killall -sigint majestic; export SENSOR=$(ipctool --sensor_id); majestic 2>&1 | logger -p daemon.info -t majestic &
 ```
 
@@ -124,7 +123,7 @@ cd OpenIPC
 
 ### Use Docker for building
 
-**Default Dockerfile.openipc**
+> **Default Dockerfile.openipc**
 
 ```docker
 FROM debian:stretch
@@ -147,7 +146,7 @@ RUN ./Project_OpenIPC.sh update
 RUN ./Project_OpenIPC.sh 18ev200_DEFAULT  # <= Change this ID to you profile
 ```
 
-**Start building**
+> **Start building**
 
 ```bash
 #!/bin/bash
@@ -503,7 +502,7 @@ flash partitions from shell command line:
 flashcp -v openwrt-hi35xx-XXXXX-u-boot.bin boot
 ```
 
-**or**
+> **or**
 
 ```bash
 flashcp -v openwrt-hi35xx-XXXXX-u-boot.bin /dev/mtd0
@@ -539,7 +538,7 @@ reboot
 
 ### Installing the original MAC
 
-**U-boot ENV and Linux UCI**
+> **U-boot ENV and Linux UCI**
 
 ```txt
 fw_setenv ethaddr 00:01:02:03:04:05
@@ -550,7 +549,7 @@ uci commit
 
 ### Installing the correct sensor
 
-**Specify your correct sensor, control type, and data bus**
+> **Specify your correct sensor, control type, and data bus**
 
 ```txt
 fw_setenv sensor imx291_i2c_lvds
@@ -565,7 +564,7 @@ If something went wrong, you can reset configuration to defaults.
 
 ### Clean overlayfs (reset)
 
-**Restore to default Linux settings**
+> **Restore to default Linux settings**
 
 ```txt
 firstboot
@@ -575,7 +574,7 @@ reboot
 
 ### Clean u-boot env
 
-**Restore to default u-boot env**
+> **Restore to default u-boot env**
 
 ```txt
 flash_eraseall -j /dev/$(awk -F ':' '/env/ {print $1}' /proc/mtd)
@@ -587,7 +586,7 @@ reboot
 
 If something goes horribly wrong, and you want your backed up firmware back
 
-**Restore backup up firmware via serial**
+> **Restore backup up firmware via serial**
 
 Install kermit using [this instruction](https://glasstty.com/?p=662) or similar.
 Here are the sample commands for 8MB Flash.
@@ -625,11 +624,11 @@ OpenIPC # sf write 0x82000000 0x0 ${filesize}
 Writing at 0x800000 -- 100% complete.
 OpenIPC # 
 ```
-**Restore backup up firmware via TFTP**
+> **Restore backup up firmware via TFTP**
 
 Here are the commands for 8MB Flash.
 
-```
+```shell
 setenv ipaddr 192.168.1.10
 setenv serverip 192.168.1.254
 sf probe 0; sf lock 0
diff --git a/en/research-security.md b/en/research-security.md
index dee0269..4ec7b1b 100644
--- a/en/research-security.md
+++ b/en/research-security.md
@@ -10,9 +10,10 @@ hash of that password while extracting a copy of the firmware image.
 
 ### Password hash
 
-```
+```console
 $1$bh2njiGH$4duacOMcXDh6myANzbZTf.
 ```
+
 The hashed salt password string consists of three parts: hashing algorithm
 identifier, salt and password hash, each of which is preceded by a dollar sign.
 The first part, `$1`, is the hashing algorithm encoded with one (rarely two)
@@ -45,7 +46,8 @@ hours, especially using high-quality dictionaries.
 
 In the example above we used password "openipc". You can check the validity of
 the password using either `mkpasswd` or `openssl`:
-```
+
+```bash
 $ mkpasswd -m md5crypt -S bh2njiGH openipc
 $1$bh2njiGH$4duacOMcXDh6myANzbZTf.
 $ openssl passwd -1 -salt bh2njiGH openipc
@@ -57,6 +59,7 @@ researchers in the field could dedicate their cryptographic resources to
 discover even more yet unknown passwords. Sharing is caring, boys!
 
 ### Some passwords that we found in different firmware
+
 ```
 | Hash                                  | Plain text |
 |---------------------------------------|------------|
@@ -100,7 +103,7 @@ discover even more yet unknown passwords. Sharing is caring, boys!
 ```
 
 ### Hijacking the default password
-_tested on Goke_
+> _tested on Goke_
 
 Over the UART interface, it is possible to temporarily interrupt the normal
 booting sequence and drop into a limited Linux shell at early stage of
@@ -142,7 +145,8 @@ file where password is written on every restart. Search for `/etc/passwd` and
 change a letter in its name to something different, like `/etc/passwT`.
 
 Pack the squash file system using `mksquashfs`:
-```
+
+```bash
 mksquashfs ./squashfs-root ./file -comp xz -no-xattrs -noappend -no-exports -all-root -quiet -b 131072
 ```
 and copy it from the SD card back to `/rom` directory on the camera.
@@ -161,6 +165,4 @@ you restart the device, you will have full working system with your own password
 [2]: https://en.wikipedia.org/wiki/Brute-force_attack
 
 
-
-
 ---------------------------------------------------
diff --git a/en/syslog.md b/en/syslog.md
index 4f08b1b..5384853 100644
--- a/en/syslog.md
+++ b/en/syslog.md
@@ -10,9 +10,11 @@ There is no difficulty in this, you need to configure the server by enabling the
 
 Will start with the camera. Add the option -R server-ip:514 with the address as shown in the example and reboot the device.
 
-
+```bash
+root@openipc-hi3516ev300:~# differ /etc/init.d/S01syslogd
 ```
-root@openipc-hi3516ev300:~# differ /etc/init.d/S01syslogd.
+
+```diff
 --- /rom/etc/init.d/S01syslogd
 +++ /etc/init.d/S01syslogd
 @@ -3,7 +3,7 @@
@@ -28,8 +30,7 @@ root@openipc-hi3516ev300:~# differ /etc/init.d/S01syslogd.
 
 In the server configuration file, write down the options of which port numbers and protocols to listen to it and make a restart of the service.
 
-
-```
+```diff
 --- rsyslog.conf.orig 2022-09-30 16:41:52.081353630 +0300
 +++ rsyslog.conf 2023-05-01 12:44:06.098032982 +0300
 @@ -14,12 +14,12 @@
@@ -52,4 +53,3 @@ In the server configuration file, write down the options of which port numbers a
 ```
 
 Comments and additions welcome. Bye !
-
diff --git a/en/sysupgrade.md b/en/sysupgrade.md
index 8555c93..6503713 100644
--- a/en/sysupgrade.md
+++ b/en/sysupgrade.md
@@ -7,7 +7,7 @@ Upgrading firmware
 ### Upgrading from GitHub
 For old firmware running `sysupgrade` without parameters is enough. For newer firmware, run `sysupgrade -k -r` to update both kernel and rootfs.
 
-__ATTENTION! Upgrading firmware can lead to "bricking" your camera. Make sure you are prepared both morally and skillwise. Have your rescue SD card and/or UART adapter ready. Be prepared to desolder and reprogram flash chip as the last resort. Do not upgrade production cameras unless you really have to!__
+__ATTENTION! Upgrading firmware can lead to "bricking" your camera. Make sure you are prepared both morally and skillwise. Have your rescue SD card and/or UART adapter ready. Be prepared to de-solder and reprogram flash chip as the last resort. Do not upgrade production cameras unless you really have to!__
 
 ### Upgrading from a TFTP server
 
@@ -18,17 +18,20 @@ Extract content of the bundle into the root directory of your TFTP server.
 
 On the camera run:
 
-#### From Linux
-```
+#### Github: From Linux
+
+```bash
 soc=$(fw_printenv -n soc)
 serverip=$(fw_printenv -n serverip)
 busybox tftp -r rootfs.squashfs.${soc} -g ${serverip}
 busybox tftp -r uImage.${soc} -g ${serverip}
 ```
 
-#### Alternatively, from U-Boot
+#### Github: Alternatively, from U-Boot
+
 for 8MB image
-```
+
+```bash
 mw.b ${baseaddr} 0xff 0x200000
 tftp ${baseaddr} uImage.${soc}
 sf probe 0; sf erase 0x50000 0x200000; sf write ${baseaddr} 0x50000 ${filesize}
@@ -37,8 +40,10 @@ mw.b ${baseaddr} 0xff 0x500000
 tftp ${baseaddr} rootfs.squashfs.${soc}
 sf probe 0; sf erase 0x250000 0x500000; sf write ${baseaddr} 0x250000 ${filesize}
 ```
+
 for 16MB image
-```
+
+```bash
 mw.b ${baseaddr} 0xff 0x300000
 tftp ${baseaddr} uImage.${soc}
 sf probe 0; sf erase 0x50000 0x300000; sf write ${baseaddr} 0x50000 ${filesize}
@@ -48,39 +53,48 @@ tftp ${baseaddr} rootfs.squashfs.${soc}
 sf probe 0; sf erase 0x350000 0xa00000; sf write ${baseaddr} 0x350000 ${filesize}
 ```
 
-
 ### Upgrading from local files
+
 Go to <https://github.com/OpenIPC/firmware/releases/tag/latest> and download the latest firmware bundle for your SoC.
 Unpack the bundle and upload its content on camera using `scp`:
-```
+
+```bash
 tar xvf <firmware.tgz>
 scp uImage* rootfs* root@<yourcameraip>:/tmp/
 ```
+
 On the camera run:
-```
+
+```bash
 soc=$(fw_printenv -n soc)
 sysupgrade --kernel=/tmp/uImage.${soc} --rootfs=/tmp/rootfs.squashfs.${soc} -z
 ```
 
 ### Upgrading from SD card
 
-#### From Linux
+#### SD Card: From Linux
+
 Go to <https://github.com/OpenIPC/firmware/releases/tag/latest> and download the latest firmware bundle for your SoC.
 Insert an SD card into your desktop PC. Unpack the bundle and copy its content to the card:
-```
+
+```bash
 tar xvf <firmware.tgz>
 cp uImage* rootfs* /media/<username>/<card-id>/
 ```
+
 Insert the SD card into your camera.
 On the camera run:
-```
+
+```bash
 soc=$(fw_printenv -n soc)
 sysupgrade --kernel=/mnt/mmcblk0p1/uImage.${soc} --rootfs=/mnt/mmcblk0p1/rootfs.squashfs.${soc} --force_ver -z
 ```
 
-#### Alternatively, from U-Boot
+#### SD Card: Alternatively, from U-Boot
+
 for 8MB image
-```
+
+```bash
 mw.b ${baseaddr} 0xff 0x200000
 fatload mmc 0:1 ${baseaddr} uImage.${soc}
 sf probe 0; sf erase 0x50000 0x200000; sf write ${baseaddr} 0x50000 ${filesize}
@@ -89,8 +103,10 @@ mw.b ${baseaddr} 0xff 0x500000
 fatload mmc 0:1 ${baseaddr} rootfs.squashfs.${soc}
 sf probe 0; sf erase 0x250000 0x500000; sf write ${baseaddr} 0x250000 ${filesize}
 ```
+
 for 16MB image
-```
+
+```bash
 mw.b ${baseaddr} 0xff 0x300000
 fatload mmc 0:1 ${baseaddr} uImage.${soc}
 sf probe 0; sf erase 0x50000 0x300000; sf write ${baseaddr} 0x50000 ${filesize}
@@ -101,17 +117,23 @@ sf probe 0; sf erase 0x350000 0xa00000; sf write ${baseaddr} 0x350000 ${filesize
 ```
 
 ### Flashing U-Boot via ymodem
+
 Clean 320K of RAM amd load bootloader file into it:
-```
+
+```bash
 mw.b ${baseaddr} 0xff 0x50000
 loady
 ```
-_(press "Ctrl-a" followed by ":", then type)_
-```
+
+> _(press "Ctrl-a" followed by ":", then type)_
+
+```bash
 exec !! sz --ymodem u-boot.bin
 ```
+
 After the file if uploaded, write it into ROM:
-```
+
+```bash
 sf probe 0
 sf erase 0x0 0x50000
 sf write ${baseaddr} 0x0 ${filesize}
@@ -120,10 +142,12 @@ sf write ${baseaddr} 0x0 ${filesize}
 ### Troubleshooting
 
 If you got this error:
-```
+
+```console
 losetup: /tmp/rootfs.squashfs.${soc}: No such file or directory
 Rootfs: Unable to get hostname, execution was interrupted...
 ```
+
 then try to update only kernel first:
 `sysupgrade -k`
 
@@ -131,6 +155,7 @@ If it doesn't help, use `--force` option:
 `sysupgrade -r --force`
 
 If you caught a glitch, retrieve the most recent version of the utility:
-```
+
+```bash
 curl -k -L -o /usr/sbin/sysupgrade "https://raw.githubusercontent.com/OpenIPC/firmware/master/general/overlay/usr/sbin/sysupgrade"
 ```
diff --git a/en/trouble-network.md b/en/trouble-network.md
index 0c1e393..df66edf 100644
--- a/en/trouble-network.md
+++ b/en/trouble-network.md
@@ -5,7 +5,7 @@
 
 Some IP-cameras require additional parameters set to make the network interface work.
 
-#### For recent firmware
+### For recent firmware
 
 Use `extras` boot variable. In Linux console run this
 ```
@@ -26,7 +26,7 @@ fw_setenv extras 'hieth.mdioifu=1 hieth.mdioifd=1' && reboot
 If nothing of the above worked for you, seek help on [our Telegram channel](https://t.me/openipc).
 
 
-#### For older firmware
+### For older firmware
 
 Set `phyaddru` and `phyaddrd` variables from U-Boot console:
 ```
diff --git a/en/wifi-xm530.md b/en/wifi-xm530.md
index 22ca266..a8607be 100644
--- a/en/wifi-xm530.md
+++ b/en/wifi-xm530.md
@@ -6,7 +6,7 @@ Wi-Fi for XM530 based devices
 
 Save this script as `/usr/sbin/wifi`
 
-```
+```bash
 #!/bin/sh
 
 WIFI=$1
@@ -24,7 +24,7 @@ fi
 
 Save these settings to `/etc/network/interfaces`
 
-```
+```bash
 auto eth2
 iface eth2 inet dhcp
     pre-up wifi xm711
diff --git a/en/wireless-settings.md b/en/wireless-settings.md
index c4ff982..3c78ef8 100644
--- a/en/wireless-settings.md
+++ b/en/wireless-settings.md
@@ -9,7 +9,7 @@ Wireless settings
 - Following packages are needed for the HI3516EV300 CamHi module.
 - The example build configuration is: `hi3516ev300_lite_defconfig`
 
-```
+```shell
 BR2_PACKAGE_WIRELESS_CONFIGURATION=y
 BR2_PACKAGE_WPA_SUPPLICANT_AP_SUPPORT=y
 BR2_PACKAGE_MT7601U_AP_OPENIPC=y
@@ -72,13 +72,13 @@ fi
 - For the initial setup, the device will create an access point with the name OpenIPC and password 12345678.
 - After connecting to the device, credentials can be changed with the wireless script:
 
-```
+```shell
 wireless setup [SSID] [PASS]
 ```
 
 - Additional settings are:
 
-```
+```shell
 wireless connect
 wireless reset
 wireless show
diff --git a/en/youtube-streaming.md b/en/youtube-streaming.md
index 2f37cb7..ac684f8 100644
--- a/en/youtube-streaming.md
+++ b/en/youtube-streaming.md
@@ -24,7 +24,7 @@ for more information.
   - switch "resolution" from "1080p" to "variable";
   - switch "ingestionType" from "rtmp" to "hls":
 
-```
+```json
 "cdn": {
   "ingestionType": "hls",
   "frameRate": "variable",
@@ -53,7 +53,7 @@ for more information.
   - 'scheduledEndTime' like '2020-04-21T01:00:00.000Z' (scheduled end time should be after the scheduled start time)
   - also press blue plus button inside "snippet" block and add "channelId" with given from stream step value
 
-```
+```json
 "snippet": {`
   `"title": "My Hometown Camera",`
   `"scheduledStartTime": "2021-04-12T00:00:00.000Z",`