- file: index
  title: Toc
- chapter: A section
  sections:
  - file: subfolder/index
    title: Subfolder
    sections:
    - file: subfolder/asubpage1
      title: Asubpage
- chapter: Another section
  sections:
  - file: content1
    title: Content1
    sections:
    - file: subfolder/asubpage2
      title: Asubpage
  - file: content2
    title: Content2
    sections:
    - file: subfolder/asubpage3
      title: Asubpage
  - file: content3
    title: Content3
    sections:
    - file: subfolder/asubpage4
      title: Asubpage
