Update ReadMe and contributing (#2760)

CONTRIBUTING.md

@@ -4,9 +4,11 @@ Weex community respects all kinds of contributing, including but not limited to
 * [Code of Conduct](#code-of-conduct)
 * [Mailing List](#mailing-list)
 * [Ask or Answer Questions](#mailing-list)
+* [Development Process](#development-process)
 * [Contribute Code or document](#contribute-code-or-document)
     * [Contribute Documentation](contribute-documentation)
     * [Contribute Code](#contribute-code)
+* [Members and Governance Model](#members-and-governance-model)
 
 # Code of Conduct
 To make an open and friendly community, Weex community adopt [Contributor Covenant](./CODE_OF_CONDUCT.md) as the code of conduct.
@@ -36,6 +38,15 @@ Compared to the amount of issues, Weex community may not response to your issues
 *Tip*:
 > If your Github issue doesn't get any response over a week, you can ask developers through [weex mailing list](https://weex.apache.org/guide/contribute/how-to-contribute.html#mailing-list).
 
+# Development Process
+Most of the development process is described in [confluence](https://cwiki.apache.org/confluence/x/eJBTBw), which services the contributors of Weex and is transparent to all users.
+
+* [Release Plan](https://github.com/apache/incubator-weex/milestones): All feature, bugfix, issue-solved are associated with a certain milestone since Weex 0.27. As every Weex release needs approval from PPMC and IPMC, the due date of milestone is just an estimation of release date, not accuracy schedule.
+* [Release Procedure](https://cwiki.apache.org/confluence/x/_I5TBw)
+* [Major feature](https://github.com/apache/incubator-weex/projects)
+* [System Design](https://cwiki.apache.org/confluence/x/XYxTBw)
+* [Road Map](https://cwiki.apache.org/confluence/x/fJBTBw)
+
 # Contribute Code or document
 In Weex community, **Documentation is as important as code**, and Weex community respects all the contribution of documentation or code.
 
@@ -131,4 +142,7 @@ There will be a static check program when you submit a PR,and the following rule
 1. Check if your PR modify the changelog.md, if not,you will receive a warning message.
 
 *Tip*:
-> Reviewing PR may take a great deal of time, please be patient. If your PR doesn't get response over 96 hours, you might send an email to [mailing list](https://weex.apache.org/guide/contribute/how-to-contribute.html#mailing-list) to ask the progress.
+> Reviewing PR may take a great deal of time, please be patient. If your PR doesn't get response over 96 hours, you might send an email to [mailing list](https://weex.apache.org/guide/contribute/how-to-contribute.html#mailing-list) to ask the progress.
+
+# Members and Governance Model
+You can find committers, PPMCs and governance model of Weex from [confluence](https://cwiki.apache.org/confluence/x/bFoyBw).

README.md

@@ -49,7 +49,7 @@ Please ***INSTALL [Git for Windows](https://git-scm.com/download/win)*** and run
 
 #### Runtime
 
-On Android Platform , Weex code is executed in [weex_v8core](https://github.com/alibaba/weex_v8core) which is based on Google V8 JavaScript engine.
+On Android Platform , Weex code is executed in [weex_js_engine](https://github.com/alibaba/weex_js_engine/tree/bridge_branch_mergeTimer) which is based on JavaScriptCore engine.
 
 ### iOS
 * run playground
@@ -100,11 +100,9 @@ Weex team have developed a [DevTool](https://github.com/weexteam/weex-devtool) t
 See more stuff on [this wiki page](https://github.com/alibaba/weex/wiki/Weex-Community)
 
 ## Weex Community
-* [Mailing List](https://weex-project.io/contributing.html#join-in-discussions) Weex Mailing List, where most discussion happens.
+* [Mailing List](https://weex.apache.org/guide/contribute/how-to-contribute.html#mailing-list) Weex Mailing List, where most discussion happens.
 * [StackOverflow](http://stackoverflow.com/questions/tagged/weex): Ask questions about Weex.
 * [SegmentFault (cn)](https://segmentfault.com/t/weex): 中文交流与讨论
-* [FAQ](https://weex.apache.org/faq.html)
-* [Articles (cn)](https://github.com/weexteam/article/issues): Weex 相关文章集合
 * [Telegram Russian Community Group](https://telegram.me/weex_ru)
 
 ### Contributing