Adding localization of zh_ZH

[doraketa]

Hi! I am very interested in your library, however - we also work with the Chinese language, and I would like to see the localization of zh_ZH. Can you tell me if it is planned to be added? Or, can I finalize this localization myself, and create a PR for you? Thanks!

[kwn]

Hi @doraketa

Thank you for raising the issue. I don't plan to add Chinese language, as I don't know it. The foreign languages are added by the contributors, so feel free to open a pull request!