docs/book.json

{
  "title": "CORD Guide",
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  },
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  },
  "plugins": [
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  ],
  "pluginsConfig": {
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      "options": [
        {
          "value": "http://guide.opencord.org/cord-4.0",
          "text": "4.0"
        },
        {
          "value": "http://guide.opencord.org",
          "text": "Master"
        },
        {
          "value": "http://wiki.opencord.org",
          "text": "3.0 and older"
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}