more console highlighting for restic snapshots code block

Kubernetes-Backups-and-Recovery-with-K8up.md

@@ -366,8 +366,8 @@ PR ref: https://github.com/seaweedfs/seaweedfs/pull/5034
 
 4. Find your desired snapshot to restore
 
-    ```bash
-    restic snapshots
+    ```console
+    $ restic snapshots
     repository d91e9530 opened (version 2, compression level auto)
     created new cache in /home/friend/.cache/restic
     ID        Time                 Host        Tags        Paths