add plunkr links

Author: Dane Macaulay

README.md

@@ -4,7 +4,7 @@ This repo contains:
 
 - Presentation available [here](http://danemacaulay.github.io/angularjs-design-patterns)
 - Example Applications including
-  - a stronger Model: ``model``
+  - a stronger Model: ``model`` 
   - a demonstration of Mediator pattern: ``mediatorDemo``
   - a demonstration of Command pattern: ``commandDemo``
 
@@ -20,3 +20,9 @@ serve
 
 Goto [http://localhost:3000/](http://localhost:3000/)
 
+
+## Plunkr Links
+
+- [Model](http://embed.plnkr.co/P9Pgs1/)
+- [Mediator](http://embed.plnkr.co/wKNT9iBsygkmakWOnI3j/preview)
+- [Command](http://embed.plnkr.co/1ugNUHWrO1N5VngLFYzm/)