fixed zenodo metadata

Author: cicirello

.zenodo.json

@@ -23,10 +23,7 @@
             "scheme": "doi",
             "identifier": "10.21105/joss.00950",
             "relation": "isDocumentedBy",
-            "resource_type": {
-                "type": "publication",
-                "subtype": "article"
-            }
+            "resource_type": "article"
         }
     ]
 }

CHANGELOG.md

@@ -19,6 +19,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### CI/CD
 
 
+## [2.6.4] - 2021-09-10
+
+### Other
+* Configured a CITATION.cff file in repository. This release is
+  strictly to confirm correct integration with Zenodo. There are
+  no actual changes or additions, etc to the library itself.
+
+
 ## [2.6.3] - 2021-09-10
 
 ### Other