updated link to community

Author: pattacini

README.md

@@ -2,7 +2,7 @@ iCub Tutorials
 ==============
 
 [![ZenHub](https://img.shields.io/badge/Shipping_faster_with-ZenHub-435198.svg)](https://zenhub.com)
-
+[![Community](https://img.shields.io/badge/Join-Robotology_Community-blue?style=plastic&logo=github)](https://github.com/robotology/community)
 ## Maintainers
 This repository is maintained by: