Readme : update readme for typo

Readme.md

@@ -4,20 +4,20 @@
 
 ## Prerequirements
 
-* install [Platformio Core](https://docs.platformio.org/en/latest/core/installation.html) or [Platformio IDE](https://docs.platformio.org/en/latest/integration/ide/vscode.html#ide-vscode) (which installes Pio core automatically)
+* install [Platformio Core](https://docs.platformio.org/en/latest/core/installation.html) or [Platformio IDE](https://docs.platformio.org/en/latest/integration/ide/vscode.html#ide-vscode) (which installs Pio core automatically)
 * **For improved LUA Script support, see env:pico32_LIGHT_EDITION_PREBUILD_LUA**: install [SWIG](http://www.swig.org/Doc4.0/SWIGDocumentation.html#Preface_installation) (also available in most package managers, e.g. `brew install swig`)
 * Then clone this repository
 
 ```
-git clone --recurse-submodules https://github.com/Open-Smartwatch/open-smartwatch-os.git
+$ git clone --recurse-submodules https://github.com/Open-Smartwatch/open-smartwatch-os.git
 ```
 
 ## build (Visual Studio Code)
 
 Open the cloned repo in VSCode
 
 ```
-code open-smartwatch-os
+$ code open-smartwatch-os
 ```
 
 and rename file `include/config.h.example` to `include/config.h` and adapt the values according to your requirements and press f5 to build it.
@@ -27,13 +27,13 @@ and rename file `include/config.h.example` to `include/config.h` and adapt the v
 You can instead go to the repo folder with your terminal and run
 
 ```
-pio run -e pico32_LIGHT_EDITION -t upload
+$ pio run -e pico32_LIGHT_EDITION -t upload
 ```
 
 respectively
 
 ```
-pio run -e pico32_GPS_EDITION -t upload
+$ pio run -e pico32_GPS_EDITION -t upload
 ```
 
 depending on the watch model.