updated license text

Author: kodandarama-accolite

README.md

@@ -431,7 +431,4 @@ let you set the following parameter in `AddAttribute` method.
 
 ### License
 
-**FUSIONCHARTS:**
-
-Copyright (c) FusionCharts Technologies LLP  
-License Information at [http://www.fusioncharts.com/license](http://www.fusioncharts.com/license)
+The FusionCharts Rails integration component is open-source and distributed under the terms of the MIT/X11 License. However, you will need to download and include FusionCharts library in your page separately, which has a [separate license](https://www.fusioncharts.com/buy).