Add code climate badges to readme

README.md

@@ -1,4 +1,4 @@
-# EmberFire [![Build Status](https://travis-ci.org/firebase/emberfire.svg?branch=master)](https://travis-ci.org/firebase/emberfire) [![Version](https://badge.fury.io/gh/firebase%2Femberfire.svg)](http://badge.fury.io/gh/firebase%2Femberfire) [![Monthly Downloads](http://img.shields.io/npm/dm/emberfire.svg?style=flat)](https://www.npmjs.org/package/emberfire) [![Ember Observer Score](http://emberobserver.com/badges/emberfire.svg)](http://emberobserver.com/addons/emberfire)
+# EmberFire [![Build Status](https://travis-ci.org/firebase/emberfire.svg?branch=master)](https://travis-ci.org/firebase/emberfire) [![Test Coverage](https://codeclimate.com/github/firebase/emberfire/badges/coverage.svg)](https://codeclimate.com/github/firebase/emberfire/coverage) [![Version](https://badge.fury.io/gh/firebase%2Femberfire.svg)](http://badge.fury.io/gh/firebase%2Femberfire) [![Monthly Downloads](http://img.shields.io/npm/dm/emberfire.svg?style=flat)](https://www.npmjs.org/package/emberfire) [![Ember Observer Score](http://emberobserver.com/badges/emberfire.svg)](http://emberobserver.com/addons/emberfire) [![Code Climate](https://codeclimate.com/github/firebase/emberfire/badges/gpa.svg)](https://codeclimate.com/github/firebase/emberfire)
 
 EmberFire is the officially supported adapter for using
 [Firebase](http://www.firebase.com/?utm_medium=web&utm_source=emberfire) with