Nm quick ee instructions update

[theguy951357]

Describe your changes

changed instructions for netmaker ee installation and fixed a metrics exporter and prometheus bug

Provide Issue ticket number if applicable/not in title

NET-422

Provide testing steps

on NET-422

Checklist before requesting a review

• My changes affect only 10 files or less.
• I have performed a self-review of my code and tested it.
• If it is a new feature, I have added thorough tests, my code is <= 1450 lines.
• If it is a bugfix, my code is <= 200 lines.
• My functions are <= 80 lines.
• I have had my code reviewed by a peer.
• My unit tests pass locally.
• Netmaker is awesome.

[abhishek9686]

@gabrielseibel1 please make a note to update the version template in the next release before updating tenants
in the version template change the NETMAKER_ACCOUNT_ID -> NETMAKER_TENANT_ID