Update README.md

README.md

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 [![Coverage Status](https://coveralls.io/repos/github/taosdata/TDengine/badge.svg?branch=develop)](https://coveralls.io/github/taosdata/TDengine?branch=develop)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/4201/badge)](https://bestpractices.coreinfrastructure.org/projects/4201)
 [![Twitter Follow](https://img.shields.io/twitter/follow/tdenginedb?label=TDengine&style=social)](https://twitter.com/tdenginedb)
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+[![YouTube Channel](https://img.shields.io/badge/Subscribe_@tdengine--white?logo=youtube&style=social)](https://www.youtube.com/@tdengine)
+[![Discord Community](https://img.shields.io/badge/Join_Discord--white?logo=discord&style=social)](https://discord.com/invite/VZdSuUg4pS)
+[![LinkedIn](https://img.shields.io/badge/Follow_LinkedIn--white?logo=linkedin&style=social)](https://www.linkedin.com/company/tdengine)
+[![StackOverflow](https://img.shields.io/badge/Ask_StackOverflow--white?logo=stackoverflow&style=social&logoColor=orange)](https://stackoverflow.com/questions/tagged/tdengine)
 
 English | [简体中文](README-CN.md) | [TDengine Cloud](https://cloud.tdengine.com) | [Learn more about TSDB](https://tdengine.com/tsdb/)