docs: update favicon and index

更新网站页面icon和首页文档信息，添加 GitHub Page 和 Gitee Page

Author: yanglbme

README.md

@@ -1,8 +1,12 @@
 # Introduction
 Hello, everyone! Welcome to the [Doocs](https://github.com/doocs) Open Source organization. The name is originated from ‘Docs’, which mainly shares various development-related knowledge in the form of documents.
 
+## Links
+- GitHub Page: https://doocs.github.io
+- Gitee Page: https://doocs.gitee.io
+
 ## Projects
-Doocs now has the following projects excluding [doocs.github.io](https://github.com/doocs/doocs.github.io):
+Doocs now has the following projects:
 
 | # | Project | Description |
 |---|---|---|
@@ -37,7 +41,4 @@ Doocs is looking forward to your joining.
 ## Contributors
 This organization exists thanks to all the people who contribute. 
 
-<a href="https://opencollective.com/doocs/contributors.svg?width=890&button=true"><img src="https://opencollective.com/doocs/contributors.svg?width=890&button=false" /></a>
-
-## Documentation
-See the [中文文档](README_CN.md) for Chinese README.
+<a href="https://opencollective.com/doocs/contributors.svg?width=890&button=true"><img src="https://opencollective.com/doocs/contributors.svg?width=890&button=false" /></a>

README_CN.md

@@ -1,6 +1,10 @@
 # 介绍
 你好，欢迎来到 [Doocs](https://github.com/doocs) 开源组织。Doocs 名字取自 Docs，主要是以文档的形式分享各种开发相关知识。
 
+## 链接
+- GitHub Page: https://doocs.github.io/#/README_CN
+- Gitee Page: https://doocs.github.io/#/README_CN
+
 ## 项目
 目前 Doocs 有以下多个项目：
 

images/doocs.png

@@ -26,12 +26,11 @@
   <script>
     window.$docsify = {
       name: 'Doocs',
-      repo: 'doocs/intro',
+      repo: 'doocs/doocs.github.io',
       auto2top: true,
       search: [
         '/'
       ],
-      disqus: 'shortname',
       plugins: [
         function (hook) {
           var footer = [