Fix README link

Author: simonbowly

README.md

@@ -1,6 +1,6 @@
 [![PyPI - Version](https://img.shields.io/pypi/v/gurobipy-pandas.svg)](https://pypi.org/project/gurobipy-pandas)
 [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/gurobipy-pandas.svg)](https://pypi.org/project/gurobipy-pandas)
-[![Tests](https://github.com/Gurobi/gurobipy-pandas/actions/workflows/test.yml/badge.svg?branch=main)](https://github.com/Gurobi/gurobipy-pandas/actions/workflows/test.yml?query=branch%3Amain++)
+[![Tests](https://github.com/Gurobi/gurobipy-pandas/actions/workflows/main.yml/badge.svg?branch=main)](https://github.com/Gurobi/gurobipy-pandas/actions/workflows/main.yml?query=branch%3Amain++)
 [![Docs](https://readthedocs.com/projects/gurobi-optimization-gurobipy-pandas/badge/?version=latest)](https://gurobipy-pandas.readthedocs.io/en/stable/)
 
 # gurobipy-pandas: Convenience wrapper for building optimization models from pandas data