Fix README badges

closes #1

Author: MarekSuchanek

README.md

@@ -1,6 +1,7 @@
 # OSTrails Read-the-Docs Documentation
 
-[![Documentation Status](https://readthedocs.org/projects/ostrails/badge/?version=latest)](https://docs.ostrails.eu/en/latest/?badge=latest)
+[![Documentation Status](https://readthedocs.org/projects/ostrails-docs/badge/?version=latest)](https://docs.ostrails.eu)
+[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](./CODE_OF_CONDUCT.md)
 
 ## Usage