update links

README.md

@@ -15,6 +15,8 @@ Arthas allows developers to troubleshoot production issues for Java applications
 
 [中文说明/Chinese Documentation](README_CN.md)
 
+**[2021中国开源项目评选，请投Arthas一票!](https://www.oschina.net/project/top_cn_2021?id=52)**
+
 ### Background
 
 Often times, the production system network is inaccessible from the local development environment. If issues are encountered in production systems, it is impossible to use IDEs to debug the application remotely. More importantly, debugging in production environment is unacceptable, as it will suspend all the threads, resulting in the suspension of business services. 

README_CN.md

@@ -11,6 +11,9 @@
 [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/alibaba/arthas.svg)](http://isitmaintained.com/project/alibaba/arthas "Average time to resolve an issue")
 [![Percentage of issues still open](http://isitmaintained.com/badge/open/alibaba/arthas.svg)](http://isitmaintained.com/project/alibaba/arthas "Percentage of issues still open")
 
+
+**[2021中国开源项目评选，请投Arthas一票!](https://www.oschina.net/project/top_cn_2021?id=52)**
+
 English version goes [here](README.md).
 
 `Arthas` 是Alibaba开源的Java诊断工具，深受开发者喜爱。

site/src/site/sphinx/index.md

@@ -23,13 +23,15 @@ Arthas 用户文档
 `Arthas`支持JDK 6+，支持Linux/Mac/Windows，采用命令行交互模式，同时提供丰富的 `Tab` 自动补全功能，进一步方便进行问题的定位和诊断。
 
 
+**[2021中国开源项目评选，请投Arthas一票!](https://www.oschina.net/project/top_cn_2021?id=52)**
+
 **如果您在使用Arthas，请让我们知道，您的使用对我们非常重要：[查看](https://github.com/alibaba/arthas/issues/111)**
 
 Contents
 --------
 
 * [首页](https://arthas.aliyun.com/)
-* [技术分享征文!](https://developer.aliyun.com/article/751641)
+* [2021开源项目投票!](https://www.oschina.net/project/top_cn_2021?id=52)
 * [English Docs](https://arthas.aliyun.com/doc/en/)
 * [在线教程(katacoda)](https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn)
 * [在线教程(阿里云)](https://start.aliyun.com/handson-lab?category=arthas)