add auto lint for md

[Chocolate1999]

reference

A linting tool for Chinese language.

https://github.com/Jinjiang/zhlint

[Chocolate1999]

The npm package still needs to be optimized, and currently the same error is reported for chodocs.

e.g. TypeError: Cannot read properties of undefined (reading 'match')

and I looked around for other md lint but did't find one that works very well.

the default Prettier for vscode works fine.