docs: added plnkr demo

JohnnyTheTank · JohnnyTheTank · commit 1e5811f775cc · 2016-04-23T13:11:35.000+02:00
diff --git a/README.md b/README.md
@@ -6,6 +6,7 @@ AngularJS module for [ademilter's bricklayer](https://github.com/ademilter/brick
 
 ## Demos
 - [Simple demo](https://rawgit.com/JohnnyTheTank/angular-bricklayer/master/demo/index.html)
+- [on Plnkr](http://plnkr.co/edit/mo3G36)
 
 ## Installation
 
