update Readme

README.md

 # Github-Crawler
 
 
-[![MIT licensed](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE) 
+[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-green.svg)](https://www.gnu.org/licenses/gpl-3.0) 
 
 ## Description
 
@@ -33,6 +33,7 @@ The python function dependancies are described in the `requirements.txt` file.
 ## License
 
 This project is licensed under the [GNU Affero General Public License](https://www.gnu.org/licenses/agpl-3.0.en.html).
+
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 <img align="left" src="img/paris_saclay.png" width="20%">