Added get it on F-Droid link

README.md

@@ -2,7 +2,11 @@ Transdroid
 ==========
 
 [www.transdroid.org](http://www.transdroid.org)  
-[Google+](https://plus.google.com/u/0/b/106240944422491053650/106240944422491053650) - [Twitter](https://twitter.com/transdroid) - [transdroid@2312.nl](transdroid@2312.nl) - [Transdrone in Play Store](https://play.google.com/store/apps/details?id=org.transdroid.lite)
+[Google+](https://plus.google.com/u/0/b/106240944422491053650/106240944422491053650) - [Twitter](https://twitter.com/transdroid) - [transdroid@2312.nl](transdroid@2312.nl) - [Transdrone in Play Store](https://play.google.com/store/apps/details?id=org.transdroid.lite)  
+
+[<img src="https://f-droid.org/badge/get-it-on.png"
+      alt="Get it on F-Droid"
+      height="80">](https://f-droid.org/app/org.transdroid.lite)
 
 "Manage your torrents from your Android device"