Draft: Resolve "add annotation logic"

Closes #60

pyiricdata/annotation.yaml

@@ -2,6 +2,8 @@ $schema: "https://json-schema.org/draft-07/schema"
 
 title: Annotation
 type: object
+description: >-
+  List of annotations attached to iric-data files.
 properties:
   abstract:
     type: string