Updated README.md

Added url for creating a library from android studio.

Author: iamsidv

README.md

@@ -10,3 +10,9 @@ Note it will return **true** on *non supported platform*.
 For Android, you need to add permissions:  
 `<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>`
 `<uses-permission android:name="android.permission.BLUETOOTH"/>`
+
+**Useful references**
+
+[Create a JAR from Android Studio Project](https://stackoverflow.com/questions/21712714/how-to-make-a-jar-out-from-an-android-studio-project)
+
+[Create an android library project](https://www.vogella.com/tutorials/AndroidLibraryProjects/article.html)