upload become a committer and fix broken links (#350)

* upload become a committer and fix broken links

fix broken link, upload how to become committer and update committer list. Committer list has been moved to new page.

* fix broken link

Author: notginger

architecture/committer-list.md

@@ -1,15 +1,8 @@
 ## Committer List
 
-| GitHub ID| Name | Email|Company|
-|:-----------------------------------------------:|:------------:|:------------------------:|:-------------------:|
-| [kayaklee](https://github.com/kayaklee)         | 李凯         | likai.root@gmail.com     | Mobike              |
-| [foxmailed](https://github.com/foxmailed)       | 吴镝         | wudi429@gmail.com        | 今日头条            |
-| [blacktear23](https://github.com/blacktear23)   | 李雨来       | blacktear23@gmail.com    | SpeedyCloud         |
-| [spongedu](https://github.com/spongedu)         | 杜川         | duchuangucas@live.com    | 腾讯云              |
-| [sunxiaoguang](https://github.com/sunxiaoguang) | 孙晓光       | sunxiaoguang@zhihu.com   | 知乎                |
-| [dbjoa](https://github.com/dbjoa)               | Jun-Seok Heo | jun.seok.heo@samsung.com | Samsung Electronics |
-
 Thank you for your contribution!
 
-See [How to become a Committer](./architecture/README.md#how-to-become-a-committer) for the
-requirements about how to become a TiDB Committer.
+Committers are listed [here](https://pingcap.com/community-cn/organization/)
+
+See [How to become a Committer](../become-a-committer.md) for the requirements about how to become a TiDB Committer.
+

become-a-committer.md

@@ -0,0 +1,21 @@
+# Become a Committer
+
+Committers come from Reviewers, and are recognized by Maintainers and SIG Tech Leads for their outstanding contributions to the specific SIG.
+
+Committer is scoped to the specific SIG where the promotion applies. See `membership.md` under the specific SIG for a list of Committers of the SIG.
+
+## How to become a TiDB Committer?
+
+- A Committer must have accomplished one or more of the following items:
+  - Demonstrated a good sense of responsibility in PR reviews within the SIG. The review contributions must meet the amount or the difficulty criteria as defined in the charter of the specific SIG.
+  - Demonstrated deep understanding of the TiDB components specific to the SIG by contributing significantly as:
+    - Finished 2 or more tasks of Medium difficulty
+    - Fixed 1 or more tasks of Hard difficulty
+  - Nominated by the Tech Leads of the SIG and gained supermajority (2/3) votes from Maintainers
+
+## Privileges and responsibilities
+
+- Custom made swag 
+- Recommend a new Organizer Committee Member
+- The profile can be listed on the Committer page
+- Participate in offline discussions and the design process