Update README.md

Author: TheMuellenator

README.md

@@ -104,6 +104,7 @@
 * [Clima Stub Project](https://github.com/londonappbrewery/Clima-Flutter)
 * [Starter Code Snippet for Async Await Demo](https://gist.github.com/angelabauer/c19c42b7795a185d2113f3b47263d2c0)
 * [Get the Location using the Geolocator Package](https://pub.dartlang.org/packages/geolocator)
+* [Android X Compatilibity](https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility)