Merge pull request #42 from fractal-analytics-platform/pypi_badge

Add pypi badge

Author: tcompa

README.md

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 # Fractal
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+[![PyPI version](https://badge.fury.io/py/fractal-server.svg)](https://badge.fury.io/py/fractal-server)
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 Fractal is a framework to process high content screening data at scale and prepares it for interactive visualization.
 
 Fractal provides distributed workflows that convert TBs of image data into OME-Zarr files. The platform then processes the 3D image data by applying tasks like illumination correction and maximum intensity projection. The pyramidal OME-Zarr files enable interactive visualization in the napari viewer.