Moving cluster usage

[SufurElite]

• Moves cluster usage from getting access into its own pages
• Removes the abomination of callouts into just the information
• Makes note of the bots that monitor over and under usage (location dependent)

[SerenaCaplins]

This looks good to me. I wonder if we want to be more explicit about what "inappropriate usage" is for the cpu/gpu bot....but can also see an argument for leaving it more general. They'll know if they do it.

[joseph-cooke]

This also looks good to me as well. You may want to include how people will be notified because I don't know how often people check their email and such too.

Also if you don't mind, could you remove the two cards for Optimizing Job Performance and Best Software Practices on the index.md. I removed the pages a while back but forgot to remove the cards. Thank you!!