qmk_firmware/book.json

{
    "structure": {
        "summary": "_summary.md"
    },
    "plugins" : [
      "anchors",
      "edit-link",
      "toolbar"
    ],
    "pluginsConfig": {
      "edit-link": {
        "base": "https://github.com/qmk/qmk_firmware/edit/master/docs",
        "label": "Suggest an edit"
      },
      "toolbar": {
        "buttons": [
          {
            "label": "QMK Firmware",
            "icon": "fa fa-github",
            "url": "https://github.com/qmk/qmk_firmware"
          }
        ]
      }
    },
    "root": "./docs/"
}