docs: update

README.md

@@ -37,14 +37,29 @@ Use "myip [command] --help" for more information about a command.
 
 ## Docker
 
-Server:
+### Server
 
 ```shell
 docker pull hub.kumoly.io/tools/myip:latest
 docker run --name myip-server -d -p 5080:5080 --restart=always hub.kumoly.io/tools/myip
 ```
 
-Client:
+Or you can use docker-compose.yaml
+
+```yaml
+services:
+  myip:
+    image: hub.kumoly.io/tools/myip
+    container_name: myip-server
+    restart: always
+    ports:
+      - 5080:5080
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+```
+
+
+### Client
 
 ```shell
 docker pull hub.kumoly.io/tools/myip:latest

cmd/server.go

@@ -19,9 +19,9 @@ var ServerCmd = &cobra.Command{
 }
 
 var (
-
 	// declared in client
 	// port string
+
 	addr string
 )