[v10.0.x] Enable doc-validator for alerting directories (#68975)

* Enable doc-validator for alerting directories (#68964)

* Enable doc-validator for alerting directories

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Adds missing description frontmatter

* Fix some more links

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fix some more links

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fixes anchors

---------

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
(cherry picked from commit 6c4cf4f8b9)

* Fix doc-validator anchor error

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

---------

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>

.github/workflows/doc-validator.yml

@@ -15,8 +15,8 @@ jobs:
         # Only run doc-validator on specific directories.
         run: >
           doc-validator
-          '--include=^docs/sources/(?:fundamentals|getting-started|introduction|setup-grafana|upgrade-guide|whatsnew/whats-new-in-v(?:9|10))/.+\.md$'
-          '--skip-checks=^image'
+          '--include=^docs/sources/(?:alerting|fundamentals|getting-started|introduction|setup-grafana|upgrade-guide|whatsnew/whats-new-in-v(?:9|10))/.+\.md$'
+          '--skip-checks=^(?:image.+|canonical-does-not-match-pretty-URL)$'
           ./docs/sources
           /docs/grafana/latest
           | reviewdog