Add missing Javascript syntax

Simen Brekken · Simen Brekken · commit 4c559d37d8a9 · 2016-12-14T15:57:44.000+01:00
diff --git a/README.md b/README.md
@@ -5,7 +5,7 @@ React bindings for [Firebase](https://firebase.google.com).
 
 ## Quick Start
 
-```
+```js
 import firebase from 'firebase'
 import { connect } from 'react-firebase'
 
