Fix CITARTIONS file

Author: lupraxus

CITATION.cff

@@ -9,7 +9,7 @@ repository-code: https://github.com/DevelopersToolbox/notify-package
 keywords:
   - "Wolf Software"
   - "Software"
-license: MIT˜
+license: MIT
 authors:
   - family-names: "Wolf"
     orcid: "https://orcid.org/0009-0007-0983-2072"