add records-changedv2 message example to docs

docs/tutorial/DataNotification.md

@@ -837,6 +837,8 @@ When the feature flag is set to true and the consumer provides "x-collaboration"
       "data": [
          {
             "id": "<message-id>",
+            "version": "1617915304347525",
+            "modifiedBy": "abc@xyz.com",
             "kind": "common:welldb:wellbore:1.0.0",
             "op": "create"
          }