DOI refers to all versions instead of 0.9.1

Author: bvreede

README.md

@@ -1,5 +1,5 @@
 Dead-link checker status (does not actually build guide itself): [![Build Status](https://travis-ci.org/NLeSC/guide.svg?branch=master)](https://travis-ci.org/NLeSC/guide)
-[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.4020622.svg)](https://doi.org/10.5281/zenodo.4020622)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.4020564.svg)](https://doi.org/10.5281/zenodo.4020564)
 
 # Guide