2023-06-23 ECA Sprint: Send notification including revision log message for node changes - version 2

[Send notification including revision log message for node changes - version 2](https://ecaguide.org/library/simple/send_notification_including_revision_log_message_for_node_changes/) In version 2 of this model, we've added content moderation functionality and a section field for a wiki page content type, such that email notifications get sent to different recipients depending on state and section of the updated node.