doc: set module version 72 to node 12
Clearly state the modules version 72 is official node 12, similar as it is done for other major node versions.
Checklist
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documentation is changed or added -
commit message follows commit guidelines
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Clearly state the modules version 72 is official node 12, similar as it is done for other major node versions.