Init this project

1. Global install yarn
2. Enter yarn newbie
3. Enter yarn dev

About multi language

• facebook/docusaurus#7377

How to translate sidebar(_category_.json)?

Before localization, at lease one page should exist in that sidebar.

1. Create _category_.json in default language(en) docs
2. Enter label(ex. Browser)
3. Add _category_.json in i18n(ko) docs(copy and paste from english docs)
4. yarn write-translations
5. Edit i18n docs _category_.json label to auto-generated translation key with modified message.