* [Uptime] Add first draft of uptime docs (#31814)
* Add first draft of uptime docs.
* Add first draft of uptime docs.
* Implement PR feedback.
* Add role info to uptime docs
* Impelement some more PR feedback.
* Attempt to add more copy focusing on the 'why' of each piece of the docs.
* uptime docs: grammar, formatting, order
* move location of uptime docs
* Implement more PR feedback.
* Add screenshots.
* Update snapshots.
