added badges

Author: schultzm

README.md

@@ -1,6 +1,8 @@
 # Budgitree
 
 [![Python package](https://github.com/schultzm/Budgitree/actions/workflows/python-package.yml/badge.svg)](https://github.com/schultzm/Budgitree/actions/workflows/python-package.yml)
+[![License: AGPL v3](https://img.shields.io/badge/License-AGPL%20v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
+[![Python 3](https://img.shields.io/badge/Python-3-blue.svg)](https://www.python.org/)
 
 
 ## Why use this program?