feat(readme): update meeting info

Signed-off-by: Jiyong Huang <huangjy@emqx.io>

README-CN.md

@@ -72,6 +72,18 @@ eKuiper 可以运行在各类物联网的边缘使用场景中，比如工业物
 
 欢迎你将任何 bug、问题和功能请求提交到 [lf-edge/ekuiper](https://github.com/lf-edge/ekuiper/issues)。
 
+### 会议
+
+欢迎订阅[社区日历](https://lists.lfedge.org/g/ekuiper-tsc/calendar?calstart=2021-08-06) 。
+
+欢迎参加社区周会，每周五早上 10:30 举行。
+- [zoom 会议链接](https://zoom.us/j/95097577087?pwd=azZaOXpXWmFoOXpqK293RFp0N1pydz09 )
+- [会议计要](https://wiki.lfedge.org/display/EKUIPER/Weekly+Development+Meeting)
+
+## 贡献
+
+感谢您的贡献！请参阅 [CONTRIBUTING.md](./docs/CONTRIBUTING.md) 获取详细信息。
+
 ## 性能测试结果
 
 ### MQTT 吞吐量测试支持

README.md

@@ -61,9 +61,21 @@ It can be run at various IoT edge use scenarios, such as real-time processing of
 - [eKuiper 5 minutes quick start](docs/en_US/quick_start_docker.md)
 - [EdgeX rule engine tutorial](docs/en_US/edgex/edgex_rule_engine_tutorial.md)
 
-## Slack channels
+## Community
+
 Join our [Slack](https://join.slack.com/t/lfedge/shared_invite/zt-7kavdtmq-SeyFzM2CEABBcKYGEVCgkw), and then join [ekuiper](https://lfedge.slack.com/archives/C024F4P7KCK) or [ekuiper-user](https://lfedge.slack.com/archives/C024F4SMEMR) channel.
 
+### Meeting
+
+Subscribe to community events [calendar](https://lists.lfedge.org/g/ekuiper-tsc/calendar?calstart=2021-08-06).
+
+Weekly community meeting at Friday 10:30AM GMT+8:
+- [zoom link](https://zoom.us/j/95097577087?pwd=azZaOXpXWmFoOXpqK293RFp0N1pydz09 )
+- [Meeting minutes](https://wiki.lfedge.org/display/EKUIPER/Weekly+Development+Meeting)
+
+## Contributing
+Thank you for your contribution! Please refer to the [CONTRIBUTING.md](./docs/CONTRIBUTING.md) for more information.
+
 ## Performance test result
 
 ### MQTT throughput test