2023-04-14 ECA Sprint Model 1: Send notification including revision log message for node changes

Created new model [Send notification including revision log message for node changes](https://ecaguide.org/library/simple/send-notification-including-revision-log-message-for-node-changes/) While building this model, we ran into an issue that we could find out why. We stopped the recording and promised to deliver the solution separately. However, once the recording was stopped, we found out what was wrong and continued recording. That second part of showing the solution then got appended to the first part.