Broken link fixed

Author: avinashn

readme.md

@@ -13,7 +13,7 @@
 </ul>
 
 ## Working Demo
-You can see the demo of the project <a href="http://justlaravel.com/demos/how-to-implement-datatables-in-laravel">here</a>
+You can see the demo of the project <a href="http://demos.justlaravel.com/how-to-implement-datatables-in-laravel">here</a>
 
 Video demonstrating the example https://www.youtube.com/watch?v=UJuqiUWGHus