fix the article

Zhili Yang · Zhili Yang · commit 3dceda2659eb · 2017-10-08T12:43:14.000+08:00
diff --git a/source/_posts/configure-ss-on-the-ubuntu.md b/source/_posts/configure-ss-on-the-ubuntu.md
@@ -75,7 +75,7 @@ vim /etc/shadowsocks.json
 $ ssserver -c /etc/shadowsocks.json -d start
 ```
 
-### 4. 查看相应的端口的监听状态
+### 查看相应的端口的监听状态
 
 ![netstat -lnp](/images/article/netstat -lnp.png)
 
