Add REUSE badge to read me
@@ -35,6 +35,7 @@ of the [University of Passau](https://www.uni-passau.de).
[![Supported Python Versions](https://img.shields.io/pypi/pyversions/pynguin.svg)](https://github.com/se2p/pynguin)
[![Documentation Status](https://readthedocs.org/projects/pynguin/badge/?version=latest)](https://pynguin.readthedocs.io/en/latest/?badge=latest)
[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3989840.svg)](https://doi.org/10.5281/zenodo.3989840)
+[![REUSE status](https://api.reuse.software/badge/github.com/se2p/pynguin)](https://api.reuse.software/info/github.com/se2p/pynguin)
![Pynguin Logo](https://raw.githubusercontent.com/se2p/pynguin/master/docs/source/_static/pynguin-logo.png "Pynguin Logo")
