From 8c9177ea39ca9c6dc50dc70030f517bc7d6c7ba2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=80=81=E4=B9=9D?= <366193849@qq.com>
Date: Tue, 15 Jun 2021 17:18:48 +0800
Subject: [PATCH] Update README.md

---
 README.md | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 3e23541..d79c605 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # FastGithub
-检测github最快的上网ip
+github定制版的dns服务，能解析最快访问github的ip
 
 
-### 应用下载
-[FastGtihub_windows](https://gitee.com/jiulang/fast-github/attach_files/737065/download/publish.zip)
+### 原理
+* 使用github公开的ip范围，扫描所有可用的ip；
+* 轮休检测与记录扫描到的ip的访问耗时；
+* 拦截dns，访问github时，返回最快的ip；