add Zenodo software DOI

Author: ascourtas

README.md

@@ -8,6 +8,7 @@
 [![Tests](https://github.com/MLMI2-CSSI/foundry/actions/workflows/tests.yml/badge.svg)](https://github.com/MLMI2-CSSI/foundry/actions/workflows/tests.yml)
 [![Tests](https://github.com/MLMI2-CSSI/foundry/actions/workflows/python-publish.yml/badge.svg)](https://github.com/MLMI2-CSSI/foundry/actions/workflows/python-publish.yml)
 [![NSF-1931306](https://img.shields.io/badge/NSF-1931306-blue)](https://www.nsf.gov/awardsearch/showAward?AWD_ID=1931306&HistoricalAwards=false)
+[![DOI](https://zenodo.org/badge/236077574.svg)](https://zenodo.org/doi/10.5281/zenodo.10480757)
 [<img src="https://img.shields.io/badge/view-documentation-blue">](https://ai-materials-and-chemistry.gitbook.io/foundry/)