Update DOI

CITATION.cff

@@ -3,7 +3,7 @@
 cff-version: 1.0.3
 message: If you use this software, please cite it as below.
 title: KNIME node for Systematic Generation of potential Metabolites (Sygma)
-doi: 10.5281/zenodo.3258217
+doi: 10.5281/zenodo.4537282
 authors:
 - given-names: Stefan
   family-names: Verhoeven
@@ -15,6 +15,6 @@ authors:
 - given-names: Albert
   family-names: J. Kooistra
   affiliation: UMC Nijmegen
-date-released: 2019-06-27
+date-released: 2021-02-12
 repository-code: https://github.com/3D-e-Chem/knime-sygma
 license: GPL-3.0

README.md

@@ -5,7 +5,7 @@ The [SyGMa](https://github.com/3D-e-Chem/sygma) [KNIME](https://www.knime.org) n
 [![Java CI with Maven](https://github.com/3D-e-Chem/knime-sygma/workflows/Java%20CI%20with%20Maven/badge.svg)](https://github.com/3D-e-Chem/knime-sygma/actions?query=workflow%3A%22Java+CI+with+Maven%22)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=nl.esciencecenter.e3dchem.sygma%3Anl.esciencecenter.e3dchem.sygma&metric=alert_status)](https://sonarcloud.io/dashboard?id=nl.esciencecenter.e3dchem.sygma%3Anl.esciencecenter.e3dchem.sygma)
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=nl.esciencecenter.e3dchem.sygma%3Anl.esciencecenter.e3dchem.sygma&metric=coverage)](https://sonarcloud.io/dashboard?id=nl.esciencecenter.e3dchem.sygma%3Anl.esciencecenter.e3dchem.sygma)
-[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1168387.svg)](https://doi.org/10.5281/zenodo.1168387)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.4537282.svg)](https://doi.org/10.5281/zenodo.4537282)
 
 # Installation