Merge branch 'josephjose-master-patch-40555' into 'master'

Add index.md to link in management_project_applications/vault.md

See merge request gitlab-org/gitlab!93891

doc/user/infrastructure/clusters/manage/management_project_applications/vault.md

@@ -35,7 +35,7 @@ Vault application causes downtime.
 
 To optimally use Vault in a production environment, it's ideal to have a good understanding
 of the internals of Vault and how to configure it. This can be done by reading
-the [Vault Configuration guide](../../../../../ci/secrets/#configure-your-vault-server),
+the [Vault Configuration guide](../../../../../ci/secrets/index.md#configure-your-vault-server),
 the [Vault documentation](https://www.vaultproject.io/docs/internals) and
 the Vault Helm chart [`values.yaml` file](https://github.com/hashicorp/vault-helm/blob/v0.3.3/values.yaml).