Update format-json.md

Adding a few popular related connectors and formats based on links clicked in TOC

Author: jonburchel

articles/data-factory/format-json.md

@@ -426,6 +426,15 @@ If this expression were entered for a column named "complexColumn", then it woul
 )
 ```
 
+## Related connectors and formats
+
+Here are some common connectors and formats related to the JSON format:
+
+- Azure Blob Storage (connector-azure-blob-storage.md)
+- Delimited text format(format-delimited-text.md)
+- OData connector(connector-odata.md)
+- Parquet format(format-parquet.md)
+
 ## Next steps
 
 - [Copy activity overview](copy-activity-overview.md)