Update README

README.md

@@ -19,6 +19,8 @@ given program's connect by [`ptrace(2)`](https://en.wikipedia.org/wiki/Ptrace),
 
 ## Installation 
 
+### Install from source
+
 `graftcp` runs on Linux. Building `graftcp-local` requires [Go](https://golang.org/doc/install) installed.
 
 ```sh
@@ -31,9 +33,13 @@ Optionally, you can also install them to system:
 
 ```sh
 sudo make install
+# Enable and activate systemed unit 
+sudo make install_systemd
 ```
 
-Then `graftcp-local` will run automatically as the operating system starts.
+### Install from binary package
+
+TODO
 
 ## Usage
 

README.zh-CN.md

@@ -13,6 +13,8 @@
 
 ## 安装
 
+### 源码安装
+
 `graftcp` 在 Linux 系统内运行。 `graftcp-local` 使用 Go 编写, [Go](https://golang.org/doc/install) 环境是必需的。
 
 ```
@@ -25,9 +27,13 @@ make 执行完后，即可运行 `graftcp-local/graftcp-local` 和 `./graftcp`
 
 ```sh
 sudo make install
+# Enable and activate systemed unit 
+sudo make install_systemd
 ```
 
-之后 `graftcp-local` 会随着系统启动而自动运行。
+### 二进制包安装
+
+TODO
 
 ## 用法参数