Update README.md

README.md

@@ -2,6 +2,11 @@
 
 [![Get it on Google Play](https://developer.android.com/images/brand/en_generic_rgb_wo_45.png)](https://play.google.com/store/apps/details?id=org.tasks)
 
+[Get it on F-Droid](https://f-droid.org/repository/browse/?fdid=org.tasks)
+
 [![Build Status](https://travis-ci.org/abaker/tasks.svg?branch=master)](https://travis-ci.org/abaker/tasks)
 
-Visit the wiki to [get started with development](https://github.com/abaker/tasks/wiki/Getting-Started-with-Development).
+Visit the wiki to
+* [help with translations](https://github.com/abaker/tasks/wiki/Translations)
+* [become a beta tester](https://github.com/abaker/tasks/wiki/Beta-Testing)
+* [get started with development](https://github.com/abaker/tasks/wiki/Getting-Started-with-Development)