OKR: Revise Mattermost integration page in UI
Attempts to do a light polish of the Mattermost integration page in the UI. Updates some links so they point to our docs, rather than Mattermost docs, and tries to find better ways to use the chunks of formatting I'm not comfortable changing.
One big change: I reunited the last two numbered steps with their friends, above.
Related issues
- Related to technical-writing#352 (closed) which is the overall OKR
- Closes #300610 (closed) which is the work for this specific page in the UI
Before and after images
| Before | After |
|---|---|
 |
 |
Edited by Amy Qualls