chore: add Zenodo badge

Author: bouweandela

README.md

@@ -1,5 +1,6 @@
 [![CI](https://github.com/bouweandela/snakemake-storage-plugin-rucio/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/bouweandela/snakemake-storage-plugin-rucio/actions/workflows/ci.yml?query=branch%3Amain)
 [![Docs](https://readthedocs.org/projects/snakemake/badge/?version=latest)](https://snakemake.github.io/snakemake-plugin-catalog/plugins/storage/rucio.html)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.15657667.svg)](https://doi.org/10.5281/zenodo.15657667)
 
 # snakemake-storage-plugin-rucio