Update README.md: add pypi and anaconda badges

Author: LucaMarconato

README.md

@@ -9,6 +9,11 @@
 [![DOI](https://zenodo.org/badge/487366481.svg)](https://zenodo.org/badge/latestdoi/487366481)
 [![Downloads](https://static.pepy.tech/badge/spatialdata)](https://pepy.tech/project/spatialdata)
 [![Release](https://github.com/scverse/spatialdata/actions/workflows/release.yaml/badge.svg?event=release)](https://github.com/scverse/spatialdata/actions/workflows/release.yaml)
+[![Documentation][badge-pypi]][link-pypi]
+[![Anaconda-Server Badge](https://anaconda.org/conda-forge/spatialdata/badges/version.svg)](https://anaconda.org/conda-forge/spatialdata)
+
+[badge-pypi]: https://badge.fury.io/py/spatialdata.svg
+[link-pypi]: https://pypi.org/project/spatialdata/
 
 SpatialData is a data framework that comprises a FAIR storage format and a collection of python libraries for performant access, alignment, and processing of uni- and multi-modal spatial omics datasets. This repository contains the core spatialdata library. See the links below to learn more about other packages in the SpatialData ecosystem.