Update README.md

Je propose d'ajouter le badge Zenika sur ce fichier README.md

Author: loic5

README.md

@@ -308,3 +308,5 @@ Thanks go to these wonderful people:
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
+
+![with love by zenika](https://img.shields.io/badge/With%20%E2%9D%A4%EF%B8%8F%20by-Zenika-b51432.svg?link=https://oss.zenika.com)