Clarifies Release Management group gma ownership

doc/user/clusters/applications.md

@@ -1195,6 +1195,10 @@ kubectl -n gitlab-managed-apps exec -it vault-0 sh
 This should give you your unseal keys and initial root token. Make sure to note these down
 and keep these safe as you will need them to unseal the Vault throughout its lifecycle.
 
+NOTE: **Note:**
+Support for installing the Vault managed application is provided by the GitLab Release Management group.
+If you run into unknown issues, please [open a new issue](https://gitlab.com/gitlab-org/gitlab/-/issues/new) and ping at least 2 people from the [Release Management group](https://about.gitlab.com/handbook/product/product-categories/#release-management-group).
+
 ### Install JupyterHub using GitLab CI/CD
 
 > [Introduced](https://gitlab.com/gitlab-org/cluster-integration/cluster-applications/-/merge_requests/40) in GitLab 12.8.