doc: fix formatting in process.markdown
All the other properties get an h2/## but process.connected gets an h3/### for no discernible reason. Seems like a typo.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
All the other properties get an h2/## but process.connected gets an h3/### for no discernible reason. Seems like a typo.