Zephyr shell tech review

Author: jasonrandrews

content/learning-paths/embedded-and-microcontrollers/zephyr_shell/3_mqtt_shell.md

@@ -49,7 +49,7 @@ Select **Create** to generate the project.
 
 The `hello_world` sample provides a working `CMakeLists.txt`, `prj.conf`, and `src/main.c`. Leave `CMakeLists.txt` unchanged, and replace `prj.conf` and `src/main.c` with the contents below.
 
-### prj.conf
+Replace the contents of `prj.conf` with the text below:
 
 ```text
 # Shell and MQTT backend
@@ -99,9 +99,11 @@ CONFIG_NET_CONFIG_MY_IPV4_GW="192.168.1.1"
 
 Keep `CONFIG_NET_CONFIG_SETTINGS=y` enabled so Zephyr applies the network configuration at boot.
 
-### src/main.c
+### Main function
 
-The shell and MQTT backend start from Zephyr initialization hooks, so `main.c` can stay minimal:
+The shell and MQTT backend start from Zephyr initialization hooks.
+
+Replace the contents of `main.c` with the code below:
 
 ```c
 int main(void)
@@ -128,7 +130,7 @@ mosquitto_shell/
         `-- mosquitto.conf
 ```
 
-### docker-compose.yml
+Edit the `docker-compose.yml` file and add the text below:
 
 ```yaml
 services:
@@ -144,7 +146,7 @@ services:
     restart: unless-stopped
 ```
 
-### mosquitto/config/mosquitto.conf
+Edit the `mosquitto.conf file and add the text below:
 
 ```text
 listener 1883 0.0.0.0

content/learning-paths/embedded-and-microcontrollers/zephyr_shell/4_uart_shell.md

@@ -34,7 +34,7 @@ Select **Create** to generate the project.
 
 The `hello_world` sample provides a working `CMakeLists.txt`, `prj.conf`, and `src/main.c`. Leave `CMakeLists.txt` unchanged, and replace `prj.conf` and `src/main.c` with the contents below.
 
-### prj.conf
+Edit the `prj.conf` file and replace the contents with the text below:
 
 ```bash
 CONFIG_SHELL=y
@@ -50,7 +50,9 @@ CONFIG_MAIN_STACK_SIZE=2048
 
 The UART shell backend routes shell input and output through the board's USB serial interface.
 
-### src/main.c
+### Main
+
+Edit the `main.c` file and replace the contents with the code below:
 
 ```c
 #include <zephyr/logging/log.h>

content/learning-paths/embedded-and-microcontrollers/zephyr_vsworkbench/1_installation.md

@@ -8,7 +8,7 @@ layout: learningpathall
 
 ## Set up the Workbench for Zephyr development environment
 
-Getting started with [Zephyr](https://zephyrproject.org/) RTOS development can be challenging. You often need to install SDKs, set up toolchains, and organize workspace directories by hand. The process is different for each operating system and board vendor, which can make setup confusing and lead to errors.
+Getting started with [Zephyr](https://zephyrproject.org/) RTOS development can be challenging. You often need to install SDKs, set up toolchains, and organize workspace directories by hand. 
 
 [Workbench for Zephyr](https://z-workbench.com/) is an open-source [Visual Studio Code extension](https://marketplace.visualstudio.com/items?itemName=Ac6.zephyr-workbench) that transforms Zephyr RTOS development into a streamlined IDE experience. Created by [Ac6](https://www.ac6.fr/en/), it automates toolchain setup, project management, and debugging, making Zephyr projects faster to start and easier to scale.