updated README

Author: btr1975

README.md

@@ -1,4 +1,10 @@
 # cookiecutter-python-fastapi-openapi
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+| BRANCH | STATUS |
+| ------ |--------|
+| main | [![Unit-Testing, Coverage, Linting](https://github.com/btr1975/cookiecutter-python-fastapi-openapi/actions/workflows/test-bake.yml/badge.svg?branch=main)](https://github.com/btr1975/cookiecutter-python-fastapi-openapi/actions/workflows/test-bake.yml) |
+| develop | [![Unit-Testing, Coverage, Linting](https://github.com/btr1975/cookiecutter-python-fastapi-openapi/actions/workflows/test-bake.yml/badge.svg?branch=develop)](https://github.com/btr1975/cookiecutter-python-fastapi-openapi/actions/workflows/test-bake.yml) |
+
 * This is a "cookiecutter" repository designed to be used as a framework to create repository structure.
 
 ## How to use a "cookiecutter" repository