README: Updated DOI. [ci skip]

README.md

@@ -4,7 +4,7 @@ OpenGeoSys 6
 [![Tag](https://img.shields.io/github/tag/ufz/ogs.svg?style=flat-square)](https://github.com/ufz/ogs/releases)
 [![BSD License (modified)](http://img.shields.io/badge/license-BSD-blue.svg?style=flat-square)](https://github.com/ufz/ogs/blob/master/LICENSE.txt)
 [![Build Status](https://jenkins.opengeosys.org/buildStatus/icon?job=ufz/ogs/master)](https://jenkins.opengeosys.org/job/ufz/job/ogs/job/master)
-[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1145843.svg)](https://doi.org/10.5281/zenodo.1145843)
+[![DOI](https://zenodo.org/badge/1701384.svg)](https://zenodo.org/badge/latestdoi/1701384)
 
 [OpenGeoSys][ogs] (OGS) is a scientific open source project for the development of
 numerical methods for the simulation of thermo-hydro-mechanical-chemical