Update Docker installation En.Version

en/guide/installation.md

@@ -19,3 +19,37 @@
    cargo install --git https://github.com/EasyTier/EasyTier.git
    ```
    :::
+
+4. **Install via Docker Compose**
+
+   ::: code-group			
+   
+   ```yaml [docker-compose.yml]
+   version: "3.8"
+   services:
+      watchtower: # Used to automatically update the easytier image, delete this part if not needed
+            command: --interval 3600 --cleanup --label-enable
+            container_name: watchtower
+            environment:
+                  - WATCHTOWER_NO_STARTUP_MESSAGE
+            image: containrrr/watchtower
+            restart: always
+            volumes:
+                  - /var/run/docker.sock:/var/run/docker.sock
+      easytier:
+            restart: always
+            labels:
+                  com.centurylinklabs.watchtower.enable: "true"        
+            privileged: true
+            mem_limit: 0m
+            container_name: easytier
+            hostname: easytier
+            network_mode: host
+            volumes:
+                  - /etc/easytier:/root
+            environment:
+                  - TZ=Asia/Shanghai
+            image: easytier/easytier:latest
+            command: -i <ip> --network-name <user> --network-secret <password> -e tcp://<server address>:11010 -l <listen address>  
+   ```
+   :::