Changed name of Google Group in README.md

Author: Jacob Wenger

README.md

@@ -12,7 +12,7 @@ services:
   * `$firebaseArray` - synchronized collections
   * `$firebaseAuth` - authentication, user management, routing
 
-Join our [Firebase + Angular Google Group](https://groups.google.com/forum/#!forum/firebase-angular)
+Join our [AngularFire Google Group](https://groups.google.com/forum/#!forum/firebase-angular)
 to ask questions, provide feedback, and share apps you've built with AngularFire.
 
 **Looking for Angular 2 support?** Visit the AngularFire2 project [here](https://github.com/angular/angularfire2).