Update README.md

Author: gavazquez

README.md

@@ -16,7 +16,7 @@
 
 *Backport of the task paralle library for using it on unity*  
 
-This is this [repo](https://github.com/couchbasedeps/dotnet-tpl35) but with a nuget package for easy usage
+Based on this [repo](https://github.com/couchbasedeps/dotnet-tpl35) but with a nuget package for easier usage
 
 ---