Update README.md

README.md

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 # STM32CubeIDE-TouchGFX-Fix
 Patches project files generated by CubeMX for STM32CubeIDE to work with TouchGFX
+
+## Background
+
+When generating TouchGFX projects using CubeMX and the STM32CubeIDE application, it will clobber a bunch of settings in the project XML that require you to configure each time. Super annoying, and since ST/TouchGFX team can't get around to fixing this in a timely manner this patch was created.
+
+## Usage
+It's a .NET Core application, so if you're building from source:
+
+### Run a pre-built release
+
+Download the latest release, and run as follows:
+
+```ps
+STM32CubeIDE-TouchGFX-Fix -p C:\MyTouchGFXProjectLocation
+```
+
+or
+
+### Build from source
+
+```ps
+dotnet build
+dotnet publish -c Release -r win10-x64
+```
+
+or optionally build it / run in Visual Studio.
+
+### Notes
+
+It will patch the .cproject XML file to set the appropriate includes/source values required for building with TouchGFX.