更新文档

* Thanks @jamescheng16

原来的链接404了

* close #107
* close #102
* close #86
* close #81
* close #55
* close #2
* close #44

* close #70
* add how to contribute to Doocs

* close #90

增加了一篇关于微服务的文章

增加了一篇关于微服务的文章。

《Redis 深度历险》是一本好书，值得一看。若觉得内容不错，可以购买书籍支持原作者。

* How to join: see https://doocs.github.io/#/?id=how-to-join
* GitHub Page: https://doocs.github.io
* Gitee Page: https://doocs.gitee.io

* GitHub Page: https://doocs.github.io/advanced-java
* Gitee Page: https://doocs.gitee.io/advanced-java
* Author: https://github.com/yanglbme

禁止直接拷贝文档和图片而不注明出处，请尊重别人的劳动成果。
本仓库由 @yanglbme 长期更新维护，GitHub 见 https://github.com/yanglbme

Sentinel 和 Hystrix，该如何做技术选型？
本文由 Doocs 开源组织(https://github.com/doocs)整理自阿里巴巴中间件团队，供各位朋友学习了解，鼓励大家使用阿里开源组件。

close #80

Add gitee for Chinese developers. See https://gitee.com/doocs/advanced-java

* 新增维权行动
* 欢迎曝光抄袭者

In the morning, I took some time and synchronized the project `advanced-java` to Gitee.
You can visit https://doocs.gitee.io/advanced-java to get a better experience if you are in China.
The original Gitee url is https://gitee.com/Doocs/advanced-java

In the morning, I took some time and synchronized the project `advanced-java` to Gitee.
You can visit https://doocs.gitee.io/advanced-java to get a better experience if you are in China.
The original Gitee url is https://gitee.com/Doocs/advanced-java

* Update description of doocs-advanced-java-attention.md
* Fix wrong link

I'm looking for long-term contributors/partners to the leetcode repo! Send me PRs if you're interested! See the following:
- Fork the repo(https://github.com/doocs/leetcode) to your own GitHub account and then clone it to your local machine.
- Make some changes to your leetcode repository, then add, commit and push it to your remote GitHub repository.
- Submit a pull request with your changes!
- See https://github.com/doocs/leetcode/blob/master/.github/CONTRIBUTING.md for more details.

* 增加《大型网站技术架构：核心原理与案例分析》书籍资源链接
* 增加《Redis 设计与实现》书籍资源链接

See https://doocs.github.io/advanced-java/#/advanced