diff --git a/README.md b/README.md
index c9d3964753137a544db8841a60d42d1b910ba7a3..f1ba17fde19fac42017bb500f6d28765ec1250bc 100644
--- a/README.md
+++ b/README.md
@@ -1,30 +1,33 @@
 # ssh-key-dir
 
 #### 介绍
-ssh-key-dir is an sshd AuthorizedKeysCommand that reads SSH authorized key files from a directory
+ssh-key-dir is an sshd AuthorizedKeysCommand that reads SSH authorized key files from a directory, ~/.ssh/authorized_keys.d. It allows SSH keys to be managed by multiple tools and processes, without competing over ~/.ssh/authorized_keys.
 
-#### 软件架构
-软件架构说明
+ssh-key-dir reads key files in lexigraphical order, ignoring any filenames starting with a dot.
 
 
 #### 安装教程
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+Install ssh-key-dir rpm package:
 
-#### 使用说明
+yum install ssh-key-dir
+
+
+You can also install just the ssh-key-dir binary with Rust's Cargo package manager:
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+cargo install ssh-key-dir
+
+#### 使用说明
 
+ssh-key-dir 是云底座操作系统NestOS的必需组件
 #### 参与贡献
 
-1.  Fork 本仓库
-2.  新建 Feat_xxx 分支
-3.  提交代码
-4.  新建 Pull Request
+master分支使用最新的上游版本，如果检测到上游有最新版本发布，先形成issue后再提交对应PR更新，流程如下。
+1.  提交issue
+2.  Fork 本仓库
+3.  新建 Feat_xxx 分支
+4.  提交代码
+5.  新建 Pull Request
 
 
 #### 特技