Add missing names from AUTHORS file

Author: Jaro Camphuijsen

CITATION.cff

@@ -39,6 +39,10 @@ authors:
     orcid: 'https://orcid.org/0000-0003-1250-6968'
   - given-names: Abby
     family-names: Cabunoc Mayes
+  - given-names: Martin
+    family-names: Robinson
+  - given-names: Sam
+    family-names: Mangham
   - given-names: Jacalyn
     family-names: Laird
   - given-names: Sarah