doc: revise CI text in collaborator guide
Minor clarifications to text. For example, this moves the "(green or yellow)" parenthetical closer to the text to which it applies. (It applies only to Jenkins CI.)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Minor clarifications to text. For example, this moves the "(green or yellow)" parenthetical closer to the text to which it applies. (It applies only to Jenkins CI.)