Add link to the demo

README.md

@@ -1,6 +1,7 @@
 # Vue Forum
 
-Simple and beautiful forum software - created using Express, Vue, and Sequelize.
+Simple and beautiful forum software - created using Express, Vue, and Sequelize.    
+[Click here](https://vue-forum.herokuapp.com) for a link to the demo.
 
 ## Features
 * Mobile ready single-page application