Update 2.import-cluster.md (#970)

docs-2.0/nebula-dashboard-ent/3.create-import-dashboard/2.import-cluster.md

@@ -8,6 +8,10 @@ This topic introduces how to import clusters using Dashboard. The current versio
 
     In the same cluster, the service versions need to be unified. Importing Nebula Graph examples from different versions in the same cluster is not supported.
 
+1. In the configuration file of each service, change the IP in `<meta|graph|storage>_server_addrs` and `local_ip` to the server's IP, and then start Nebula Graph.
+
+  For details, see [Configurations](../../5.configurations-and-logs/1.configurations/1.configurations.md) and [Manage Nebula Graph services](../../4.deployment-and-installation/manage-service.md).
+
 1. In the **Cluster management** page, click **Import cluster**.
 2. In the **Import cluster** page, enter the information of **Connect to Nebula Graph**.
   - Graphd Host: <The format of Graphd Host is the IP port of one of the Graphd processes>:n<Port>. In this example, the IP is `192.168.8.157:9669`.
@@ -25,9 +29,12 @@ This topic introduces how to import clusters using Dashboard. The current versio
    - Enter the cluster name, 15 characters at most. In this example, the cluster name is `create_1027`.
    - **Authorize** the node. The SSH username and password of each node are required.
    - **Batch authorization** requires uploading the CSV file. Edit the authentication information of each node according to the downloaded CSV file. Ensure that the node information is correct, otherwise upload failure may happen.
-   ![Batch authentication](../figs/ds-026.png)
+
+    ![Batch authentication](../figs/ds-026.png)
+
    - If the node status on the page becomes **authorized**, the node authentication is successful.
-   ![Authorize](../figs/ds-027.png)
+
+    ![Authorize](../figs/ds-027.png)
 
 4. Ensure that all nodes are authorized successfully. Click **Import cluster**.