nav:
  -
    slug: "helpers-overview"
    title: "Overview"
  -
    slug: "helpers-miscellaneous"
    title: "Miscellaneous"
  -
    slug: "spacing"
    title: "Spacing"
  -
    slug: "border-radius"
    title: "Border radius"
  -
    slug: "text-alignment"
    title: "Text alignment"
  -
    slug: "block-layout"
    title: "Block layout"
  -
    slug: "block-alignment"
    title: "Block alignment"
  -
    slug: "vertical-alignment"
    title: "Vertical alignment"
  -
    slug: "rich-containers"
    title: "Rich Containers"
    nav:
      -
        slug: "rc-introduction"
        title: "Introduction"
      -
        slug: "rc-spacing-and-alignment"
        title: "Spacing & Alignment"
      -
        slug: "rc-examples"
        title: "Examples"