Read the guideline here.
Use the badge in your project's README.md
[![img](https://img.shields.io/badge/code%20style-pysanity-teal)](https://github.com/rednafi/pysanity)
Use the badge in your project's README.rst
.. image:: https://img.shields.io/badge/code%20style-pysanity-teal :target: https://github.com/rednafi/pysanity