Merge branch 'docs-add-gcp-screenshot-description' into 'master'

Add clarify about deploy_boards_kubernetes_label.png screenshot

See merge request gitlab-org/gitlab!41962

doc/user/project/deploy_boards.md

@@ -105,6 +105,8 @@ To display the Deploy Boards for a specific [environment](../../ci/environments/
    re-deploy your application. If you are using Auto DevOps, this will
    be done automatically and no action is necessary.
 
+   If you are using GCP to manage clusters, you can see the deployment details in GCP itself by going to **Workloads > deployment name > Details**:
+   
    ![Deploy Boards Kubernetes Label](img/deploy_boards_kubernetes_label.png)
 
 Once all of the above are set up and the pipeline has run at least once,