Merge pull request #28601 from RA489/update_etcd

Example with data dir for restore

Author: k8s-ci-robot

content/en/docs/tasks/administer-cluster/configure-upgrade-etcd.md

@@ -325,6 +325,10 @@ Here is an example:
 ```shell
 ETCDCTL_API=3 etcdctl --endpoints 10.2.0.9:2379 snapshot restore snapshotdb
 ```
+Another example for restoring using etcdutl options:
+```shell
+ETCDCTL_API=3 etcdutl --data-dir <data-dir-location> snapshot restore snapshotdb
+```
 
 For more information and examples on restoring a cluster from a snapshot file, see
 [etcd disaster recovery documentation](https://etcd.io/docs/current/op-guide/recovery/#restoring-a-cluster).