message: Features section starts at performance section.
diff: @@ -71,7 +71,7 @@ module.exports = {
  editLinkText: "Edit this page on GitHub",
  nav: [
  { text: "Home", link: "/" },
  - { text: "Features", link: "/features/llk" },
  + { text: "Features", link: "/features/blazing_fast" },
  { text: "Tutorial", link: "/tutorial/step0_introduction" },
  { text: "Guide", link: "/guide/introduction" },
  