Merge remote-tracking branch 'origin/master' into wvp-28181-2.0

panlinlin

2021-01-11 8b4d8a76acf3a699744caeda8ca6f0268136727e

 README.md

@@ -39,7 +39,7 @@
- [ ] 国标通道向上级联  
    - [X] WEB添加上级平台
    - [X] 注册
    - [ ] 心跳保活
    - [X] 心跳保活
    - [ ] 通道选择
    - [ ] 通道推送
    - [ ] 点播