readme.md in rails_chartjs-1.0 vs readme.md in rails_chartjs-1.1

@@ -1,4 +1,6 @@
+[![Gem Version](https://badge.fury.io/rb/rails_chartjs.svg)](https://badge.fury.io/rb/rails_chartjs)
+
 # Introduction
 
 Integrate chartjs library to your rails app.
 
 [Chart.js](http://www.chartjs.org) is "Simple HTML5 charts using the canvas element".