Update hardware information

[wwarriner]

We have a more complete picture of the hardware layout c/o John-Paul. I have it in a powerpoint file on Slack in #datascience.

At the least we need to add

• uplinks to the internet for both on and off-campus IO speeds
• infiniband and ethernet backbone IO speeds
• storage totals, duplication, tiers and IO speeds (tie into the storage.md page)

[wwarriner]

450 may obviate this one.