update some docs + add navbar

docs/STM32/README.md

@@ -1,5 +1,8 @@
 # Work with STM32 on CLion
 
+
+----------
+
 ## Setup on Windows
 
 ## Install ARM Toolchain
@@ -50,4 +53,5 @@ sudo apt install openocd
 ### Install STM32CubeMX for Windows
 `#Windows`
 1. Download the [binary zip file for Windows](https://www.st.com/en/development-tools/stm32cubemx.html)
-2. Run the installer
+   2. Run the installer
+