!435 replace collabrative editor from shimo to etherpad

* Description:[fix] replace collabrative editor from shimo to etherpad

sig/sig-architecture/sig-architecture.md

@@ -29,7 +29,7 @@ Responsible for the OpenHarmony architecture (including adding, merging, splitti
 
 ### Meetings
  - Meeting time：Every Tuesday at 16:00 o'clock
- - Meeting application: [OpenHarmony SIG-Architecture Meeting Proposal](https://shimo.im/sheets/CqJChdHgcXywT9Gt/MODOC)
+ - Meeting application: [OpenHarmony SIG-Architecture Meeting Proposal](https://etherpad.openharmony.cn/p/sig-architecture)
  - Meeting link: Welink
  - Meeting notification: [Subscribe to](https://lists.openatom.io/postorius/lists/dev.openharmony.io) mailing list dev@openharmony.io for the meeting link
 

sig/sig-architecture/sig-architecture_cn.md

@@ -26,7 +26,7 @@
 
 ### 会议
  - 会议时间：每周二 16:00
- - 会议申报：[OpenHarmony SIG-Architecture Meeting Proposal](https://shimo.im/sheets/CqJChdHgcXywT9Gt/MODOC)
+ - 会议申报：[OpenHarmony SIG-Architecture Meeting Proposal](https://etherpad.openharmony.cn/p/sig-architecture)
  - 会议链接: Welink
  - 会议通知: 请[订阅](https://lists.openatom.io/postorius/lists/dev.openharmony.io)邮件列表 dev@openharmony.io 获取会议链接