Fix PyPI link in README (qubvel-org#658)

Author: remram44

README.md

@@ -8,7 +8,7 @@ Segmentation based on [PyTorch](https://pytorch.org/).**
 [![GitHub Workflow Status (branch)](https://img.shields.io/github/workflow/status/qubvel/segmentation_models.pytorch/CI/master?style=for-the-badge&logo=github)](https://github.com/qubvel/segmentation_models.pytorch/actions/workflows/tests.yml) 
 [![Read the Docs](https://img.shields.io/readthedocs/smp?style=for-the-badge&logo=readthedocs&logoColor=white)](https://smp.readthedocs.io/en/latest/) 
 <br>
-[![PyPI](https://img.shields.io/pypi/v/segmentation-models-pytorch?color=blue&style=for-the-badge&logo=pypi&logoColor=white)](https://pypi.org/search/?q=segmentation-models-pytorch) 
+[![PyPI](https://img.shields.io/pypi/v/segmentation-models-pytorch?color=blue&style=for-the-badge&logo=pypi&logoColor=white)](https://pypi.org/project/segmentation-models-pytorch/) 
 [![PyPI - Downloads](https://img.shields.io/pypi/dm/segmentation-models-pytorch?style=for-the-badge&color=blue)](https://pepy.tech/project/segmentation-models-pytorch) 
 <br>
 [![PyTorch - Version](https://img.shields.io/badge/PYTORCH-1.4+-red?style=for-the-badge&logo=pytorch)](https://pepy.tech/project/segmentation-models-pytorch)