Update some out-of-dated info about community

communication/irc-guidelines_en.md

@@ -6,7 +6,7 @@ MindSpore community holds its various public meetings on **[IRC](https://en.wiki
 
 * #mindspore-discuss
 * #mindspore-sc
-  
+
 on Freenode. Everyone is encouraged to attend, [Connect to IRC via webclient](https://webchat.freenode.net/?randomnick=1&channels=%23mindspore-discuss%2C%23mindspore-sc&prompt=1&uio=d4)
 
 webclient recommended:
@@ -21,7 +21,7 @@ IRC channels and logged. You can find all channels and all logs here:
 
 The meeting channel can be managed by meeting chair with bot command, which is used by # prefix character. The basic commands are shown below:
 
-#startmeeting - (chair) Start the meeting on channel. the meeting topic should be given on the rest. e.g. ``#startmeeting infra``  
+#startmeeting - (chair) Start the meeting on channel. the meeting topic should be given on the rest. e.g. ``#startmeeting infra``
 #topic - (chair) - (chair) Start a topic on channel to make sure all partners focus on a special topic.
 #endmeeting - (chair) End the whole meeting.
 

communication/irc-guidelines_zh_cn.md

@@ -71,6 +71,6 @@ IRC频道与日志，您可以在这里找到所有的频道和记录[IRC Channe
 ```
 <freesky-edward> #link [http://wiki.debian.org/MeetBot/](http://wiki.debian.org/MeetBot/) 是主页
 <freesky-edward> [http://wiki.debian.org/MeetBot/](http://wiki.debian.org/MeetBot/) 是主页
-<freesky-edward> #link the main page is [http://wiki.debian.org/MeetBot/](http://wiki.debian.org/MeetBot/) 
+<freesky-edward> #link the main page is [http://wiki.debian.org/MeetBot/](http://wiki.debian.org/MeetBot/)
 浏览这里
 ```

communication/mailing-list-guidelines_en.md

@@ -15,12 +15,11 @@ If you have never subscribed to the mail list, do as follows:
 
 | List name | Post address | Description |
 | :-------- | :----------- | :---------- |
-| Contact | contact@mindspore.cn | |
-| MindSpore-infra | mindspore-infra@mindspore.cn | |
 | MindSpore-discuss | mindspore-discuss@mindspore.cn | |
+| MindSpore-infra | mindspore-infra@mindspore.cn | |
 | MindSpore-research | mindspore-research@mindspore.cn | |
-| MindSpore-tsc | mindspore-tsc@mindspore.cn | |
 | MindSpore-security | mindspore-security@mindspore.cn | |
+| MindSpore-tsc | mindspore-tsc@mindspore.cn | |
 
 ### How Do I Send an Email to the Mail List?
 
@@ -32,9 +31,8 @@ All community memberships in this mail list will receive your email.
 
 To view previous emails, visit the following archive addresses:
 
-- **[Contact](https://mailweb.mindspore.cn/hyperkitty/list/contact@mindspore.cn/)**
-- **[MindSpore-infra](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-infra@mindspore.cn/)**
 - **[MindSpore-discuss](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-discuss@mindspore.cn/)**
+- **[MindSpore-infra](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-infra@mindspore.cn/)**
 - **[MindSpore-research](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-research@mindspore.cn/)**
-- **[MindSpore-tsc](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-tsc@mindspore.cn/)**
 - **[MindSpore-security](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-security@mindspore.cn/)**
+- **[MindSpore-tsc](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-tsc@mindspore.cn/)**

communication/mailing-list-guidelines_zh_cn.md

@@ -15,12 +15,11 @@
 
 | 列表名称 | 邮件地址 | 描述 |
 | :------ | :------ | :--- |
-| Contact | contact@mindspore.cn | |
-| MindSpore-infra | mindspore-infra@mindspore.cn | |
 | MindSpore-discuss | mindspore-discuss@mindspore.cn | |
+| MindSpore-infra | mindspore-infra@mindspore.cn | |
 | MindSpore-research | mindspore-research@mindspore.cn | |
-| MindSpore-tsc | mindspore-tsc@mindspore.cn | |
 | MindSpore-security | mindspore-security@mindspore.cn | |
+| MindSpore-tsc | mindspore-tsc@mindspore.cn | |
 
 ### 如何发送邮件到邮件列表？
 
@@ -32,9 +31,8 @@
 
 要查看邮件列表中以前发布的电子邮件，请访问以下存档地址：
 
-- **[Contact](https://mailweb.mindspore.cn/hyperkitty/list/contact@mindspore.cn/)**
-- **[MindSpore-infra](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-infra@mindspore.cn/)**
 - **[MindSpore-discuss](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-discuss@mindspore.cn/)**
+- **[MindSpore-infra](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-infra@mindspore.cn/)**
 - **[MindSpore-research](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-research@mindspore.cn/)**
-- **[MindSpore-tsc](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-tsc@mindspore.cn/)**
 - **[MindSpore-security](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-security@mindspore.cn/)**
+- **[MindSpore-tsc](https://mailweb.mindspore.cn/hyperkitty/list/mindspore-tsc@mindspore.cn/)**

communication/slack-guidelines.md

@@ -6,4 +6,4 @@ Chat is searchable and public. Do not make comments that you would not say on a
 
 *`@here`* and *`@channel`* should be used rarely. Members will receive notifications from these commands and we are a global project - please be kind. Note: *`@all`* is only to be used by admins.
 
-You can join the [MindSpore Slack](https://mindspore.slack.com/) instance at [https://mindspore.slack.com/](https://join.slack.com/t/mindspore/shared_invite/enQtOTcwMTIxMDI3NjM0LTNkMWM2MzI5NjIyZWU5ZWQ5M2EwMTQ5MWNiYzMxOGM4OWFhZjI4M2E5OGI2YTg3ODU1ODE2Njg1MThiNWI3YmQ).
+You can join the [MindSpore Slack](https://mindspore.slack.com/) instance at [https://mindspore.slack.com/](https://join.slack.com/t/mindspore/shared_invite/zt-dgk65rli-3ex4xvS4wHX7UDmsQmfu8w).

tsc/README.md

@@ -4,8 +4,8 @@ The role and responsibilities of the Technical Steering Committee are defined in
 the [governance](../governance.md) document.
 
 The Technical Steering Committee meets regularly and calls are available for
-any community member to join via <https://meet.jit.si/MindSporeTSC> on the second
-Thursday every month (UTC+8) from *12:00pm* to *1:00pm* and *4:00pm* to *5:00pm*
+any community member to join via [**WeLink Meeting**](https://www.huaweicloud.com/en-us/product/welink-download.html) on the **3th Thursday** every month (UTC+8)
+from *4:00pm* to *5:00pm*.
 
 Agendas for upcoming meetings and notes from completed meetings are published
 under `meeting-notes` folder.