This plugin adds i18n buttons in the GitBook website toolbar to implement i18n according different url.

add a book.json configuration to use this plugin:

{
    plugins: ["i18n"]
}

This plugin can be configured in the book.json:

configuration is:

{
    "pluginsConfig": {
        "i18n": {
            "all": [
                "english", "chinese"
            ],
            "ChineseUrl": "../zh-CN",
            "EnglishUrl": "../en-US"
        }
    }
}