update readme

README.md

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 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/dc206007664d41e8bc0871c2ff8c7815)](https://www.codacy.com/app/abadakhshan/narik-material-demo?utm_source=github.com&utm_medium=referral&utm_content=NarikMe/narik-material-demo&utm_campaign=Badge_Grade)
 
-A demo for [**Narik**](http://narik.me "Narik Angular Framework") with [Angular Material](https://material.angular.io/ "Angular Material")
+A demo for [**Narik**](http://narik.me "Narik Angular Framework") with [Angular Material](https://material.angular.io/ "Angular Material")  
+
+[Online Demo](http://narik.me/demo/app)
 
 ## Running the demo