docs/rook-ceph-storage: Use correct apply command
The doc tells the user to update the `rook-ceph` component config and
then re-apply the `rook` component, which doesn't make sense.
@@ -277,7 +277,7 @@ component "rook-ceph" {
Execute the following command to apply the changes:
```bash
-lokoctl component apply rook
+lokoctl component apply rook-ceph
```
Verify the StorageClass is default:
