Update README.md

README.md

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 <div align="center">
 
+[![Test In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1zGm4VeXsJ-0x6A5_icnknE7mbJ0knUig?usp=sharing)
 [![Tests](https://github.com/vanderschaarlab/hyperimpute/actions/workflows/test.yml/badge.svg)](https://github.com/vanderschaarlab/hyperimpute/actions/workflows/test.yml)
 [![Tutorials](https://github.com/vanderschaarlab/hyperimpute/actions/workflows/test_tutorials.yml/badge.svg)](https://github.com/vanderschaarlab/hyperimpute/actions/workflows/test_tutorials.yml)
-[![Package Release](https://github.com/vanderschaarlab/hyperimpute/actions/workflows/release.yml/badge.svg)](https://github.com/vanderschaarlab/hyperimpute/actions/workflows/release.yml)
 [![Documentation Status](https://readthedocs.org/projects/hyperimpute/badge/?version=latest)](https://hyperimpute.readthedocs.io/en/latest/?badge=latest)
 
 
 [![arXiv](https://img.shields.io/badge/arXiv-2206.07769-b31b1b.svg)](https://arxiv.org/abs/2206.07769)
-[![Test In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1zGm4VeXsJ-0x6A5_icnknE7mbJ0knUig?usp=sharing)
 [![](https://pepy.tech/badge/hyperimpute)](https://pypi.org/project/hyperimpute/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 [![Python 3.7+](https://img.shields.io/badge/python-3.7+-blue.svg)](https://www.python.org/downloads/release/python-370/)
+[![slack](https://img.shields.io/badge/chat-on%20slack-purple?logo=slack)](https://vanderschaarlab.slack.com/)
 
 
 ![image](https://github.com/vanderschaarlab/hyperimpute/raw/main/docs/arch.png "HyperImpute")