Update README.md

Author: Jefferderp

README.md

@@ -1,3 +1,11 @@
 This is a simple Magisk module for Android which injects a custom keyboard mapping file into the /system partition.
 
 I don't recommend you use this as-is - though you're welcome to adapt it.
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+My thanks to the following resources:
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+http://gustavepate.github.io/blog/20130714/android-keyboard-layout-logitech-tablet-keyboard/
+https://developer.android.com/reference/android/view/KeyEvent
+https://source.android.com/devices/input/key-character-map-files
+https://forum.xda-developers.com/t/how-to-remap-mouse-buttons-and-is-possible-to-make-kl-and-kcm-files-for-it.3190940/
+https://topjohnwu.github.io/Magisk/guides.html