update README

README.org

@@ -37,7 +37,6 @@ Linux好游戏
 + [[https://github.com/lujun9972/linux-document/blob/master/raw/Testssl.sh - Testing TLS-SSL Encryption Anywere on Any Port.org][ Testssl.sh - Testing TLS-SSL Encryption Anywere on Any Port]]		<2017-12-21>
 + [[https://github.com/lujun9972/linux-document/blob/master/raw/How to Search DuckDuckGo from the Linux Terminal.org][ How to Search DuckDuckGo from the Linux Terminal]]		<2017-12-21>
 + [[https://github.com/lujun9972/linux-document/blob/master/raw/How to Run Multiple Commands on Multiple Linux Servers.org][ How to Run Multiple Commands on Multiple Linux Servers]]		<2017-12-21>
-+ [[https://github.com/lujun9972/linux-document/blob/master/raw/How to Permanently Disable Swap in Linux.org][ How to Permanently Disable Swap in Linux]]		<2017-12-21>
 + [[https://github.com/lujun9972/linux-document/blob/master/raw/How to Configure Custom Access and Error Log Formats in Nginx.org][ How to Configure Custom Access and Error Log Formats in Nginx]]		<2017-12-21>
 + [[https://github.com/lujun9972/linux-document/blob/master/raw/How to Check MySQL Database Size in Linux.org][ How to Check MySQL Database Size in Linux]]		<2017-12-21>
 + [[https://github.com/lujun9972/linux-document/blob/master/raw/4 Ways to Speed Up SSH Connections in Linux.org][ 4 Ways to Speed Up SSH Connections in Linux]]		<2017-12-21>
@@ -52,6 +51,7 @@ Linux好游戏
 * system
 系统管理相关内容
 
++ [[https://github.com/lujun9972/linux-document/blob/master/system/How to Permanently Disable Swap in Linux.org][ 如何永久禁用Linux交换空间]]		<2017-12-22>
 + [[https://github.com/lujun9972/linux-document/blob/master/system/How To Set or Change Hostname in CentOS 7.org][ 如何设置/更改CentOS7的主机名]]		<2017-12-21>
 + [[https://github.com/lujun9972/linux-document/blob/master/system/5 tricks for using the sudo command.org][ sudo命令的5个小技巧]]		<2017-11-16>
 + [[https://github.com/lujun9972/linux-document/blob/master/system/How to Set Up Easy Remote Desktop Access in linux.org][ 如何设置Linux版的远程桌面连接]]		<2017-11-13>