Update README.md (#40)

Je vous propose d'ajouter un badge Zenika sur ce fichier :)

Author: loic5

README.md

@@ -83,3 +83,5 @@ Do not hesitate to contribute by [filling an issue](https://github.com/Zenika/te
 
 ## 📖 License
 This project is under the [Apache License 2.0](https://raw.githubusercontent.com/Zenika/terraform-aws-cli/master/LICENSE)
+
+![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)