Added workflow badge

Author: jedymatt

README.md

@@ -3,6 +3,7 @@
 [![PyPI](https://img.shields.io/pypi/v/sqlalchemyseed)](https://pypi.org/project/sqlalchemyseed)
 [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/sqlalchemyseed)](https://pypi.org/project/sqlalchemyseed)
 [![PyPI - License](https://img.shields.io/pypi/l/sqlalchemyseed)](https://github.com/jedymatt/sqlalchemyseed/blob/main/LICENSE)
+[![Python package](https://github.com/jedymatt/sqlalchemyseed/actions/workflows/python-package.yml/badge.svg)](https://github.com/jedymatt/sqlalchemyseed/actions/workflows/python-package.yml)
 
 Sqlalchemy seeder. Supports nested relationships.