doc: improvements to globals.markdown copy
General improvements to the globals.markdown copy,
including restructuring, improving examples, and
adding setImmediate()
which had oddly been omitted.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
General improvements to the globals.markdown copy,
including restructuring, improving examples, and
adding setImmediate()
which had oddly been omitted.