Update README.md with fixed Chart.js CDN link

Author: jtblin

README.md

@@ -197,7 +197,7 @@ You also need to have  ```height``` and ```width``` attributes for the ```<canva
 
 Please check if issue exists first, otherwise open issue in [github](https://github.com/jtblin/angular-chart.js/issues). 
 **Ensure you add a link to a plunker, jsbin, or equivalent.** 
-Here is a [jsbin template](http://jsbin.com/dufibi/3/edit?html,js,output) for convenience.
+Here is a [jsbin template](http://jsbin.com/cucoqe/1/edit?html,js,output) for convenience.
 
 # Contributing