Fix badge

Author: ml31415

README.md

@@ -1,4 +1,4 @@
-[![GitHub Workflow CI Status](https://img.shields.io/github/workflow/status/ml31415/numpy-groupies/CI?logo=github&style=flat)](https://github.com/ml31415/numpy-groupies/actions)
+[![GitHub Workflow CI Status](https://img.shields.io/github/actions/workflow/status/ml31415/numpy-groupies/ci.yaml?branch=master&logo=github&style=flat)](https://github.com/ml31415/numpy-groupies/actions)
 [![PyPI](https://img.shields.io/pypi/v/numpy-groupies.svg?style=flat)](https://pypi.org/project/numpy-groupies/)
 [![Conda-forge](https://img.shields.io/conda/vn/conda-forge/numpy_groupies.svg?style=flat)](https://anaconda.org/conda-forge/numpy_groupies)
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)