Update CITATION.cff

Author: jorgee

CITATION.cff

@@ -1,5 +1,31 @@
 cff-version: 1.2.0
 message: "If you use this software, please cite it as below."
+authors:
+  - family-names: "Götz"
+    given-names: "Markus"
+  - family-names: "Debus"
+    given-names: "Charlotte"
+  - family-names: "Coquelin"
+    given-names: "Daniel"
+  - family-names: "Krajsek"
+    given-names: "Kai"
+  - family-names: "Comito"
+    given-names: "Claudia"
+  - family-names: "Knechtges"
+    given-names: "Philipp"
+  - family-names: "Hagemeier"
+    given-names: "Björn"
+  - family-names: "Tarnawa"
+    given-names: "Michael"
+  - family-names: "Hanselmann"
+    given-names: "Simon"
+  - family-names: "Siggel"
+    given-names: "Martin"
+  - family-names: "Basermann"
+    given-names: "Achim"
+  - family-names: "Streit"
+    given-names: "Achim"
+title: "Heat - Helmholtz Analytics Toolkit"
 url: "https://github.com/helmholtz-analytics/heat"
 preferred-citation:
   type: conference-paper