Use full resource kind name in restore instructions

docs/maintenance.rst

@@ -94,9 +94,9 @@ the following commands:
 .. code:: bash
 
    kubectl delete service -n stackspin-apps -l stackspin.net/backupSet=$app
-   kubectl delete deploy -n stackspin-apps -l stackspin.net/backupSet=$app
-   kubectl delete sts -n stackspin-apps -l stackspin.net/backupSet=$app
-   kubectl delete pvc -n stackspin-apps -l stackspin.net/backupSet=$app
+   kubectl delete deployment -n stackspin-apps -l stackspin.net/backupSet=$app
+   kubectl delete statefulset -n stackspin-apps -l stackspin.net/backupSet=$app
+   kubectl delete persistentvolumeclaim -n stackspin-apps -l stackspin.net/backupSet=$app
    velero restore create arbitrary-name-of-restore-operation --from-backup=$backup -l stackspin.net/backupSet=$app
 
 .. note::