chore: add github stats

README.md

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 # Zodiac-Core
 
+[![Build Status](https://github.com/gnosisguild/zodiac/workflows/zodiac/badge.svg?branch=master)](https://github.com/gnosisguild/zodiac/actions?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/gnosis/zodiac/badge.svg?branch=master)](https://coveralls.io/github/gnosisguild/zodiac?branch=master)
+[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](https://github.com/gnosisguild/CODE_OF_CONDUCT)
+
 This package includes the base [Zodiac](https://github.com/gnosisguild/zodiac) contracts and interfaces from which Zodiac components are derived. It also includes a typescript SDK for encoding, deploying, and managing mastercopies and module instances.
 
 ## Base Contracts