From b4ef459e9f0b6bce0c1a6d3fa10eca0f083a730f Mon Sep 17 00:00:00 2001
From: zhao xin <esrrhs@163.com>
Date: Wed, 19 Dec 2018 16:47:45 +0800
Subject: [PATCH] Update README.md

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 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5701098..bd567d2 100644
--- a/README.md
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 # pingtunnel
 pingtunnel是把udp流量伪装成icmp流量进行转发的工具，类似于kcptun。
 典型的使用方式
-![image](network.jpg)
+![image](network.png)
 
     通过伪造ping，把udp流量通过远程服务器转发到目的服务器上。用于突破某些运营商封锁UDP流量。
     By forging ping, the udp traffic is forwarded to the destination server through the remote server. Used to break certain operators to block UDP traffic.