added badge fix (again)

README.md

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 Bayesian Single-Cutoff Residence Time Analysis (basicrta)
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 [//]: # (Badges)
-[![workflow]](https://github.com/becksteinlab/basicrta/.github/workflows/python_package.yml/badge.svg)
+[![workflow]](https://github.com/becksteinlab/basicrta/.github/workflows/python-package.yml/badge.svg)
 [![codecov](https://codecov.io/gh/Becksteinlab/basicrta/graph/badge.svg?token=WoGPuQEqNI)](https://codecov.io/gh/Becksteinlab/basicrta)
 
 A Bayesian analysis to determine the time-scales involved in protein-small molecule binding events