Make (and update) a services table, with pointers to survival guides for each service

We should make a table of what our services are, and which teams / people are running them.

Here's the original table:

ahf imported this table into gitlab, but it doesn't seem to display:

I'll start with: phw just made a survival guide for check, and it is at:

Edited Sep 03, 2020 by Roger Dingledine

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