Merge branch 'binder' into 'master'

adding mybinder badge to README

See merge request !25

README.md

@@ -5,6 +5,7 @@ https://gitlab.in2p3.fr/escape2020/wp3/eossr/-/commits/master)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 [![coverage report](https://gitlab.in2p3.fr/escape2020/wp3/eossr/badges/master/coverage.svg)](
 https://gitlab.in2p3.fr/escape2020/wp3/eossr/-/commits/master)
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/git/https%3A%2F%2Fgitlab.in2p3.fr%2Fescape2020%2Fwp3%2Feossr/HEAD)
 
 
 ESCAPE OSSR library