Update README.md

Author: Pytlicek

README.md

@@ -1,3 +1,4 @@
+[![Test Python package](https://github.com/Pytlicek/fastapi-featureflags/actions/workflows/python-package.yml/badge.svg?branch=main)](https://github.com/Pytlicek/fastapi-featureflags/actions/workflows/python-package.yml) 
 ![PythonVersions](https://img.shields.io/badge/python-3.6%20%7C%203.7%20%7C%203.8%20%7C%203.9%20%7C%203.10-blue) 
 [![Sourcery](https://img.shields.io/badge/Sourcery-enabled-brightgreen)](https://sourcery.ai) 
 [![Black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black) 
@@ -69,4 +70,4 @@ app.include_router(ff_router, tags=["FeatureFlags"])
 ---
 ### TODO
 - Better main class 
-- Packaging
+- Packaging