6257deeae6
Alerting docs: update Introduction page (#89155)
* Update Introduction page
* Update `How alerting works` image
* Update docs/sources/alerting/fundamentals/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Update docs/sources/alerting/fundamentals/_index.md
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
* Fix `alt` attribute
* alert instance are sent `in` notifications
* Clarify `Notification policies`
* Clarify Notification Policy responsibilities
* Edit existing image captions
* change `configure a contact point` to `choose a contact point`
* Update image `caption/alt`
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Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
(cherry picked from commit d0cf8956e2)
Co-authored-by: Pepe Cano <825430+ppcano@users.noreply.github.com>