Docs: update Legacy alerting deprecation to pass doc-validator (#69192)

* baldm0mma/doc-val/ update paths

* baldm0mma/doc-val/ update path

* baldm0mma/doc-val/ update trailing comma

* baldm0mma/doc-val

docs/sources/alerting/migrating-alerts/legacy-alerting-deprecation.md

@@ -29,11 +29,11 @@ The new system is based on Prometheus Alertmanager, which offers a more comprehe
 
 Overall, the new alerting system in Grafana is a major improvement over the legacy alerting feature, providing users with a more powerful and flexible alerting experience.
 
-Additionally, legacy alerting still requires Angular to function and we are [planning to remove support for it]({{< relref ".../developers/angular_deprecation" >}}) in Grafana 11.
+Additionally, legacy alerting still requires Angular to function and we are [planning to remove support for it]({{< relref "../../developers/angular_deprecation" >}}) in Grafana 11.
 
 ## When will we remove legacy alerting completely?
 
-Legacy alerting will be removed from the code-base in Grafana 11, following the same timeline as the [Angular deprecation]({{< relref ".../developers/angular_deprecation" >}}).
+Legacy alerting will be removed from the code-base in Grafana 11, following the same timeline as the [Angular deprecation]({{< relref "../../developers/angular_deprecation" >}}).
 
 ## How do I migrate to the new Grafana alerting?
 
@@ -43,4 +43,4 @@ Refer to our [migration instructions]({{< relref "./opt-in" >}}).
 
 - [Upgrade Alerting]({{< relref "./_index.md" >}})
 - [Legacy alerting differences and limitations]({{< relref "./_index.md" >}})
-- [Angular support deprecation]({{< relref ".../developers/angular_deprecation/" >}})
+- [Angular support deprecation]({{< relref "../../developers/angular_deprecation" >}})