Update Readme.

Author: dark-lbp

README.md

@@ -6,6 +6,11 @@ ISF is based on open source project [routersploit](https://github.com/reverse-sh
 *Read this in other languages: [English](README.md), [简体中文](README.zh-cn.md),*
 
 
+## Disclaimer 
+Usage of ISF for attacking targets without prior mutual consent is illegal. It is the end user's responsibility to obey all applicable local, state and federal laws.
+Developers assume no liability and are not responsible for any misuse or damage caused by this program.
+
+
 ## ICS Protocol Clients
 | Name               | Path                                   | Description            |
 | -------------------| ---------------------------------------|:----------------------:|  

README.zh-cn.md

@@ -1,11 +1,16 @@
 # 框架介绍
-ISF(Industrial Exploitation Framework)，是一款基于python编写的类似metasploit的工控漏洞利用框架。
+ISF(Industrial Exploitation Framework)，是一款基于python编写的类似metasploit的工控安全测试框架。
 
 ISF基于开源项目[routersploit](https://github.com/reverse-shell/routersploit)修改而来。
 
 *该文档的其他语言版本: [English](README.md), [简体中文](README.zh-cn.md),*
 
 
+## 免责声明
+未经事先双方同意，使用ISF对目标进行攻击性测试是非法的。最终用户有责任遵守所有适用的地方、州和联邦法律。
+开发人员对使用该程序造成的任何损害不承担责任。
+
+
 ## 工控协议客户端
 | Name               | Path                                   | Description            |
 | -------------------| ---------------------------------------|:----------------------:|