Update README.md

Author: FabianHoerst

README.md

@@ -4,6 +4,7 @@
 <img src="https://img.shields.io/badge/PyTorch-EE4C2C?style=flat-square&logo=Pytorch&logoColor=white"/>
 [![arXiv](https://img.shields.io/badge/arXiv-2501.05269-b31b1b.svg)](https://arxiv.org/abs/2501.05269)
 [![Documentation](https://img.shields.io/badge/docs-CellViT--Inference-blue.svg)](https://tio-ikim.github.io/CellViT-Inference/)
+[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/TIO-IKIM/CellViT-Inference/blob/main/CellViT_Inference.ipynb)
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 <p align="center">
   <img src="./docs/source/_static/banner.png"/>