old_contents: module.exports = {
    title: "Hello World Collection",
    description: "Collection of Hello World in Any Language",
    base: "/hello-world/",
    dest: "public"
  }
new_contents: module.exports = {
    title: "Hello World Collection",
    description: "Collection of Hello World in Any Language",
    base: "/hello-world/",
    dest: "public",
    themeConfig: {
      nav: [
        { text: "Home", link: "/" },
        {
          text: "Github",
          link: "https://github.com/berviantoleo/hello-world"
        }
      ],
      sidebar: ["/"]
    }
  }
  
subject: Update config.js