"languages" in your docs.json can be leveraged to partition your navigation into different languages.

We currently support localization in English (en), Chinese (cn), Spanish (es), French (fr), Japanese (jp), Portuguese (pt), Portuguese (Brazil) (pt-BR), and German (de).

docs.json
{
  "navigation": {
    "languages": [
      {
        "language": "en",
        "groups": [
          {
            "group": "Getting Started",
            "pages": ["en/overview", "en/quickstart", "en/development"]
          }
        ]
      },
      {
        "language": "es",
        "groups": [
          {
            "group": "Getting Started",
            "pages": ["es/overview", "es/quickstart", "es/development"]
          }
        ]
      }
    ]
  }
}