update to citation file

proccaserra · proccaserra · commit c7fe0b55963e · 2021-08-20T17:11:30.000+01:00
diff --git a/CITATION.cff b/CITATION.cff
@@ -18,6 +18,6 @@ authors:
   orcid: "https://orcid.org/0000-0001-9853-5668"
 title: "Ontomaton"
 version: 4.0
-doi: 10.5281/zenodo.
+doi: 10.5281/zenodo.5227312
 date-released: 2021-08-20
 url: "https://github.com/ISA-tools/OntoMaton"
