Add badge [ci skip]

Charlotte Dunois · web-flow · commit 19847babb383 · 2018-09-03T09:12:36.000+02:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-EventEmitter
+EventEmitter [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/CharlotteDunois/EventEmitter/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/CharlotteDunois/EventEmitter/?branch=master)
 ==================
 
-This is an Event Emitter equivalent to Node.js' Event Emitter.
+This is an Event Emitter equivalent to Node.js' Event Emitter.
