Docs:fixes alerting support escalations (#69770)

* Docs:fixes alerting support escalations

* updates recording rule text

* adds link

* fixes link

* Update docs/sources/alerting/alerting-rules/create-mimir-loki-managed-recording-rule.md

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update docs/sources/alerting/alerting-rules/create-mimir-loki-managed-recording-rule.md

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* fixes relref

* adds link to prometheus docs

* fixes relref

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

docs/sources/developers/http_api/alerting_provisioning.md

@@ -52,6 +52,10 @@ title: 'Alerting Provisioning HTTP API '
 
 ### Contact points
 
+**Note:**
+
+Contact point provisioning is for Grafana-managed alerts only.
+
 | Method | URI                                       | Name                                                      | Summary                           |
 | ------ | ----------------------------------------- | --------------------------------------------------------- | --------------------------------- |
 | DELETE | /api/v1/provisioning/contact-points/{UID} | [route delete contactpoints](#route-delete-contactpoints) | Delete a contact point.           |