Deployment instructions for Create users-groups.json does not mention security group needed.

[gwolski]

While running Command01_MountHeadNodeNfs on a node it timed out as it was missing a security group.
I had to add my SlurmSubmitterSG to the machine I want to to run Command01_MountHeadNodeNfs as the headnode requires a machine to be in this security group to allow it access. I think you should mention which security group needs to assigned to the node that is doing the create users-groups.json file.