[SCB-1765] create a mirror for github pages for better access of china
diff --git a/java-chassis-reference/en_US/docs/index.md b/java-chassis-reference/en_US/docs/index.md
index 66c65fc..e4c4c47 100644
--- a/java-chassis-reference/en_US/docs/index.md
+++ b/java-chassis-reference/en_US/docs/index.md
@@ -9,6 +9,7 @@
 
 | version | link |
 | :--- | :--- |
-| latest(2.0.0) | [中文](https://docs.servicecomb.io/java-chassis/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/en_US/)|
+| latest(2.0.0) | [中文](https://docs.servicecomb.io/java-chassis/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/en_US/)| github pages | 
+| latest(2.0.0) | [中文](http://liubao68.gitee.io/servicecomb-java-chassis-doc/java-chassis/zh_CN/), [English](http://liubao68.gitee.io/servicecomb-java-chassis-doc/java-chassis/en_US/)| gitee pages |
 | 1.3.0 | [中文](https://docs.servicecomb.io/java-chassis/1.x/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/1.x/en_US/)|
 | 1.2.1 | [中文](https://docs.servicecomb.io/java-chassis/1.x/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/1.x/en_US/)|
\ No newline at end of file
diff --git a/java-chassis-reference/en_US/mkdocs.yml b/java-chassis-reference/en_US/mkdocs.yml
index 7f9b32e..e020477 100644
--- a/java-chassis-reference/en_US/mkdocs.yml
+++ b/java-chassis-reference/en_US/mkdocs.yml
@@ -1,6 +1,7 @@
 site_name: ServiceComb Java Chassis Developers Guide
 
 nav:
+- Introduction : index.md
 - Getting Started: 
     - Glossary: start/terminology.md
     - Architecture: start/architecture.md
diff --git a/java-chassis-reference/zh_CN/docs/index.md b/java-chassis-reference/zh_CN/docs/index.md
index fa3b080..8591d36 100644
--- a/java-chassis-reference/zh_CN/docs/index.md
+++ b/java-chassis-reference/zh_CN/docs/index.md
@@ -9,8 +9,9 @@
 
 开发者可以通过下面的链接获取其他版本的帮助文档。
 
-| 版本| 链接 |
-| :--- | :--- |
-| 最新(2.0.0) | [中文](https://docs.servicecomb.io/java-chassis/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/en_US/)|
-| 1.3.0 | [中文](https://docs.servicecomb.io/java-chassis/1.x/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/1.x/en_US/)|
-| 1.2.1 | [中文](https://docs.servicecomb.io/java-chassis/1.x/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/1.x/en_US/)|
\ No newline at end of file
+| 版本| 链接 | 说明 |
+| :--- | :--- | :--- |
+| 最新(2.0.0) | [中文](https://docs.servicecomb.io/java-chassis/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/en_US/)| github pages, 适合国外用户|
+| 最新(2.0.0) | [中文](http://liubao68.gitee.io/servicecomb-java-chassis-doc/java-chassis/zh_CN/), [English](http://liubao68.gitee.io/servicecomb-java-chassis-doc/java-chassis/en_US/)| gitee pages, 适合国内用户|
+| 1.3.0 | [中文](https://docs.servicecomb.io/java-chassis/1.x/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/1.x/en_US/)| |
+| 1.2.1 | [中文](https://docs.servicecomb.io/java-chassis/1.x/zh_CN/), [English](https://docs.servicecomb.io/java-chassis/1.x/en_US/)| |
\ No newline at end of file
diff --git a/java-chassis-reference/zh_CN/mkdocs.yml b/java-chassis-reference/zh_CN/mkdocs.yml
index 731448e..74cf229 100644
--- a/java-chassis-reference/zh_CN/mkdocs.yml
+++ b/java-chassis-reference/zh_CN/mkdocs.yml
@@ -1,6 +1,7 @@
 site_name: ServiceComb Java Chassis 开发指南
 
 nav:
+- 概述 : index.md
 - 入门: 
     - 术语表: 'start/terminology.md'
     - 微服务系统架构: 'start/architecture.md'