on Main the file : docs/HeadlessDeployment.md
at point 4
Start Services (Assumes Azure marketplace AI/HPC Image): parallel-ssh -i -t 0 -h hostfile "sudo /opt/azurehpc/tools/Moneo/linux_service/start_moneo_services.sh true"
The 'true' as parameter for the 'start_moneo_services.sh' script is not valid and should be removed else it will result in a message:
PublisherMethod is not one of the valid choices.