add DOI label

Author: stgeke

README.md

@@ -9,7 +9,7 @@ COPYRIGHT (c) 2019-2023 UCHICAGO ARGONNE, LLC
 
 [![Build Status](https://travis-ci.com/Nek5000/nekRS.svg?branch=master)](https://travis-ci.com/Nek5000/nekRS)
 [![License](https://img.shields.io/badge/License-BSD%203--Clause-orange.svg)](https://opensource.org/licenses/BSD-3-Clause)
-[![DOI](https://zenodo.org/badge/200469913.svg)](https://zenodo.org/badge/latestdoi/200469913)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.7984525.svg)](https://doi.org/10.5281/zenodo.7984525)
 
 **nekRS** is a fast and scaleable computational fluid dynamics (CFD) solver targeting HPC applications. The code started as an early fork of [libParanumal](https://github.com/paranumal/libparanumal) in 2019.