added licenses links

Author: IvanPaez

README.md

@@ -1,4 +1,6 @@
 [![Build Status](https://travis-ci.com/atolab/zenoh-python.svg?branch=master)](https://travis-ci.com/atolab/zenoh-python)
+[![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![codecov](https://codecov.io/gh/atolab/zenoh-python/branch/master/graph/badge.svg)](https://codecov.io/gh/atolab/zenoh-python)
 [![Documentation Status](https://readthedocs.org/projects/zenoh-python/badge/?version=latest)](https://zenoh-python.readthedocs.io/en/latest/?badge=latest)
 [![Gitter](https://badges.gitter.im/atolab/zenoh.svg)](https://gitter.im/atolab/zenoh?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)