Merge branch 'bprescott/docs/20210930-batchedmigr' into 'master'

Clarify 14.1 on the upgrade path

See merge request gitlab-org/gitlab!71500

doc/user/admin_area/monitoring/background_migrations.md

@@ -24,7 +24,7 @@ prevent integer overflow for some tables.
 ## Check the status of background migrations
 
 All migrations must have a `Finished` status before you [upgrade GitLab](../../../update/index.md).
-You can [check the status of existing migrations](../../../update/index.md#checking-for-background-migrations-before-upgrading).
+You can [check the status of existing migrations](../../../update/index.md#batched-background-migrations).
 
 ## Enable or disable batched background migrations