update README.md

README.md

@@ -3,8 +3,29 @@ DNS-Forwarder for OpenWrt
 
  [![Download][B]][2]
 
-Forwarding DNS queries on TCP transport. For more information see the [Wiki][0].
+简介
+---
 
- [0]: https://github.com/aa65535/openwrt-chinadns/wiki/Use-DNS-Forwarder
+ 本项目是 [DNS-Forwarder][1] 在 OpenWrt 上的移植  
+
+编译
+---
+
+ - 从 OpenWrt 的 [SDK][S] 编译  
+
+   ```bash
+   # 以 ar71xx 平台为例
+   tar xjf OpenWrt-SDK-ar71xx-for-linux-x86_64-gcc-4.8-linaro_uClibc-0.9.33.2.tar.bz2
+   cd OpenWrt-SDK-ar71xx-*
+   # 获取 Makefile
+   git clone https://github.com/aa65535/openwrt-dns-forwarder.git package/dns-forwarder
+   # 选择要编译的包 Network -> ChinaDNS
+   make menuconfig
+   # 开始编译
+   make package/dns-forwarder/compile V=99
+   ```
+
+ [1]: https://github.com/aa65535/hev-dns-forwarder
  [2]: https://github.com/aa65535/openwrt-dns-forwarder/releases/latest
- [B]: https://img.shields.io/badge/Download-v1.0.2-blue.svg
+ [B]: https://img.shields.io/badge/Download-v1.1.0-blue.svg
+ [S]: https://wiki.openwrt.org/doc/howto/obtain.firmware.sdk