# What this PR does
There was an unnecessary indentation in the `rules:` key which made it
invalid YAML.
Also replaced the mentions to Amixr with Grafana OnCall, used some
`<code>` tags and reworded some sentences.
Also removed the anchor tag from the webhook link: we don't want people
to follow that in their browser, we want them to copy it
## Result screenshot

## Which issue(s) this PR fixes
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
---------
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
Co-authored-by: Joey Orlando <joey.orlando@grafana.com>