Update README.md

Author: z4kn4fein

README.md

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 # ConfigCat OpenFeature Provider for Python
 
+[![CI](https://github.com/configcat/openfeature-python/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/configcat/openfeature-python/actions/workflows/ci.yml) 
+[![PyPI](https://img.shields.io/pypi/v/configcat-openfeature-provider.svg)](https://pypi.python.org/pypi/configcat-openfeature-provider)
+[![PyPI](https://img.shields.io/pypi/pyversions/configcat-openfeature-provider.svg)](https://pypi.python.org/pypi/configcat-openfeature-provider)
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 This repository contains an OpenFeature provider that allows the usage of [ConfigCat](https://configcat.com) with the [OpenFeature Python SDK](https://github.com/open-feature/python-sdk).
 
 ## Installation