diff --git a/EDUReViver/httpclient.cpp b/EDUReViver/httpclient.cpp
index 49823ee..396d9f7 100644
--- a/EDUReViver/httpclient.cpp
+++ b/EDUReViver/httpclient.cpp
@@ -219,7 +219,7 @@ int request_payload_online(int sn, const char* hash, const char* signature, cons
     int retcode = 0;
     char agent[64];
     DWORD dwVersion = GetVersion();
-    sprintf_s(agent, sizeof(agent), "EDUReViver/0.3.8 (Windows NT %d.%d)", (UCHAR)dwVersion, (UCHAR)(dwVersion >> 8));
+    sprintf_s(agent, sizeof(agent), "EDUReViver/0.3.9 (Windows NT %d.%d)", (UCHAR)dwVersion, (UCHAR)(dwVersion >> 8));
     HINTERNET internet = InternetOpenA(agent, 0, 0, 0, 0);
     if (internet) {
         bool havesni = os_have_sni();
diff --git a/README.md b/README.md
index 8e8307e..38f6030 100644
--- a/README.md
+++ b/README.md
@@ -3,33 +3,33 @@ J-Link EDU Reviver
 
 使用方法
 --------
-从右侧[releases](https://github.com/banxian/EDUReviver/releases)页面下载最新[可执行文件包](https://github.com/banxian/EDUReviver/releases/download/v0.3.8-beta/EDUReviver_bin_b038.zip).
+从右侧[releases](https://github.com/banxian/EDUReviver/releases)页面下载最新[可执行文件包](https://github.com/banxian/EDUReviver/releases/download/v0.3.9-beta/EDUReviver_bin_b039.zip).
 解压所有文件到目录中, 进入目录在命令行下执行想要的命令
 
-EDUReViver -run blinky  
+`EDUReViver -run blinky`  
 闪灯测试, 如果红灯闪烁12次, 说明设备能通过校验且网络通讯正常.  
 
-EDUReViver -run revive  
+`EDUReViver -run revive`  
 去除多余的FlashDL之类的Features.  
 
-EDUReViver -run swd  
-打开JLink电路板上的调试接口, 可以用来救砖.  
+`EDUReViver -run swd`  
+启用JLink电路板上的调试接口, 可以用来救砖.  
 
-EDUReViver -run swd off  
-关闭JLink电路板上的调试接口.  
+`EDUReViver -run swd off`  
+禁用JLink电路板上的调试接口.  
 
-EDUReViver -run to11  
-转换V10/V12到V11. 重新插拔后, 打开jlink commander会自动刷新固件.  
+`EDUReViver -run to11`  
+转换V10/V12到V11. 成功转换后, 打开J-Link Commander会自动刷新固件.  
 
-EDUReViver -run to10  
-转换V11/V12到V10. 重新插拔后, 打开jlink commander会自动刷新固件. 原装V12无法降级.  
+`EDUReViver -run to10`  
+转换V11/V12到V10. 成功转换后, 打开J-Link Commander会自动刷新固件. 原装V12无法降级.  
 
-EDUReViver -run to12  
-转换V10/V11到V12. 重新插拔后, 打开jlink commander会自动刷新固件. 注意因为没有V12真机, 此工具转换的V12 Bootloader不原装.  
+`EDUReViver -run to12`  
+转换V10/V11到V12. 成功转换后, 打开J-Link Commander会自动刷新固件. 注意因为没有V12真机, 此工具转换的V12 Bootloader不原装.  
 
 支持设备
 --------
-J-Link V10/V11 所有版本, 目前为止所有固件. 支持错误添加了Features的正版. 但不能是山寨版. 我加了一些在线检测避免滥用.
+J-Link V10/V11 所有版本, 目前为止所有固件. 支持错误添加了Features的正版. 但不能是山寨版. 我加了一些在线检测避免滥用.   
 一次只能支持一个设备, 支持配置为WinUSB驱动, 如果出现识别错误, 请在JLinkConfig配置程序中切换到Segger驱动.
 
 免责声明
@@ -39,8 +39,8 @@ J-Link V10/V11 所有版本, 目前为止所有固件. 支持错误添加了Feat
 
 Introduce
 ---------
-This utility support all version of JLinkV10/V11. support genuine jlink brick by bad features.
-doesn't support illegal clones. some check applied on my utility to prevent running on clones.
+This utility support all version of JLinkV10/V11. support genuine jlink brick by bad features.   
+doesn't support illegal clones. some check applied on my utility to prevent running on clones.   
 turn off winusb mode in JlinkConfig if you meet usb communicate problems.
 
 Usage
@@ -48,26 +48,26 @@ Usage
 download binary archive from [releases](https://github.com/banxian/EDUReviver/releases) page. extract all files to same folder.
 cd to folder then execute these commands in command prompt.
 
-EDUReViver -run blinky  
+`EDUReViver -run blinky`  
 this payload blinks red LED 12 times. this should used to test your usb and network connection is fine.  
   
-EDUReViver -run revive  
+`EDUReViver -run revive`  
 this payload remove all extra features.  
 
-EDUReViver -run swd  
+`EDUReViver -run swd`  
 this payload unlocking SWD debugging on JLink PCB.  
 
-EDUReViver -run swd off  
+`EDUReViver -run swd off`  
 this payload locking SWD debugging on JLink PCB again.  
 
-EDUReViver -run to11  
-this payload turns your V10/fakeV12 to V11. unplug and replug usb cable, then flash new firmware in jlink commander.  
+`EDUReViver -run to11`  
+this payload turns your V10/fakeV12 to V11. after payload sucessed, please launch J-Link Commander to flash firmware.  
 
-EDUReViver -run to10  
-this payload turns your V11/fakeV12 to V10. unplug and replug usb cable, then flash new firmware in jlink commander.  
+`EDUReViver -run to10`  
+this payload turns your V11/fakeV12 to V10. after payload sucessed, please launch J-Link Commander to flash firmware.  
 
-EDUReViver -run to12  
-this payload turns your V10/V11 to fakeV12. unplug and replug usb cable, then flash new firmware in jlink commander.  
+`EDUReViver -run to12`  
+this payload turns your V10/V11 to fakeV12. after payload sucessed, please launch J-Link Commander to flash firmware.  
 
 Disclaimer
 ----------