systemd note available for nebula-ent created by dashboard (#1318)

docs-2.0/reuse/source_manage-service.md

@@ -45,9 +45,11 @@ For easy maintenance, Nebula Graph Enterprise Edition supports managing services
 
 !!! note
 
-    After installing Nebula Graph Enterprise Edition, the `.service` files required by systemd are located in the `etc/unit` path in the installation directory. Nebula Graph installed with the RPM/DEB package automatically places the `.service` files into the path `/usr/lib/systemd/system` and the parameter `ExecStart` is generated based on the specified Nebula Graph installation path, so you can use `systemctl` commands directly.
+    - After installing Nebula Graph Enterprise Edition, the `.service` files required by systemd are located in the `etc/unit` path in the installation directory. Nebula Graph installed with the RPM/DEB package automatically places the `.service` files into the path `/usr/lib/systemd/system` and the parameter `ExecStart` is generated based on the specified Nebula Graph installation path, so you can use `systemctl` commands directly.
+
+    - The `systemctl` commands cannot be used to manage the Enterprise Edition cluster that is created with Dashboard of the Enterprise Edition.
 
-    Otherwise, users need to move the `.service` files manually into the directory `/usr/lib/systemd/system`, and modify the file path of the parameter `ExecStart` in the `.service` files.
+    - Otherwise, users need to move the `.service` files manually into the directory `/usr/lib/systemd/system`, and modify the file path of the parameter `ExecStart` in the `.service` files.
 
 ### Syntax