chore: fix shield badge in readme

Author: okunator

README.md

@@ -8,7 +8,8 @@
 [![PyTorch - Version](https://img.shields.io/badge/PYTORCH-1.8.1+-red?style=for-the-badge&logo=pytorch)](https://pytorch.org/)
 [![Python - Version](https://img.shields.io/badge/PYTHON-3.8+-red?style=for-the-badge&logo=python&logoColor=white)](https://www.python.org/)
 <br>
-[![Github Test](https://img.shields.io/github/workflow/status/okunator/cellseg_models.pytorch/Tests?label=Tests&logo=github&style=for-the-badge)](https://github.com/okunator/cellseg_models.pytorch/actions/workflows/tests.yml)
+
+[![Github Test](https://img.shields.io/github/actions/workflow/status/okunator/cellseg_models.pytorch/tests.yml?label=Tests&logo=github&&style=for-the-badge)](https://github.com/okunator/cellseg_models.pytorch/actions/workflows/tests.yml)
 [![Pypi](https://img.shields.io/pypi/v/cellseg-models-pytorch?color=blue&logo=pypi&style=for-the-badge)](https://pypi.org/project/cellseg-models-pytorch/)
 [![Codecov](https://img.shields.io/codecov/c/github/okunator/cellseg_models.pytorch?logo=codecov&style=for-the-badge&token=oGSj7FZ1lm)](https://codecov.io/gh/okunator/cellseg_models.pytorch)
 <br>