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README.md

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 # JaxPM
+[![Notebook](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/DifferentiableUniverseInitiative/JaxPM/blob/main/notebooks/01-Introduction.ipynb)
 [![PyPI version](https://img.shields.io/pypi/v/jaxpm)](https://pypi.org/project/jaxpm/) [![Tests](https://github.com/DifferentiableUniverseInitiative/JaxPM/actions/workflows/tests.yml/badge.svg)](https://github.com/DifferentiableUniverseInitiative/JaxPM/actions/workflows/tests.yml) <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
 [![All Contributors](https://img.shields.io/badge/all_contributors-5-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->