[DOCS]: description of charset at MysqlConnectionOptions is not unclear

[0816i]

What was unclear or otherwise insufficient?

Typeorm can connect with mysql2 as well as mysql. MysqlConnectionOptions description says Default: 'UTF8_GENERAL_CI'. But I found that mysql2's default charset is UTF8MB4_UNICODE_CI. So This description will confuse to other developer. So, I think that something should change.

Recommended Fix

Please Change description of MysqlConnectionOptions like
Default: 'UTF8_GENERAL_CI' -> Default: 'UTF8_GENERAL_CI'(mysql), 'UTF8MB4_UNICODE_CI'(mysql2).

Additional Context

If I was wrong, Please comment about this issue.

Thank you for typeorm maintainers.

Are you willing to resolve this issue by submitting a Pull Request?

Yes, I have the time, but I don't know how to start. I would need guidance.