[Doc] Documentation Needed for eventmesh-connector-wechat

[wizardzhang]

Search before asking

• I had searched in the issues and found no similar issues.

Documentation Related

Currently, most connectors lack documentation. The following details must be added to provide better clarity to the developers:

1. functions of the current connector
2. descriptions of configuration items
3. precautions (if any),
4. relevant official reference links (if any),
5. Other specific content that needs to be explained in the documentation.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct *

[pandaapo]

In the future, community will mainly maintain documents in eventmesh-site. Therefore, if it is convenient for you, please write the new English documents in this directory of eventmesh-site, and Chinese documents in the directory.

[AzazelSensei]

Opened a docs PR on eventmesh-site for the WeChat sink: apache/eventmesh-site#259