node_modules/mailgun-js/book.json

{
  "gitbook": ">=3.0.0",
  "title": "Mailgun-js",
  "root": "./docs",
  "structure": {
    "summary": "summary.md",
    "readme": "readme.md"
  },
  "plugins": ["prism", "-highlight", "github"],
  "pluginsConfig": {
    "github": {
      "url": "https://github.com/bojand/mailgun-js"
    }
  }
}