  \dirtree{%^^A
  .1 [your repository root]\DTcomment{path to your repository, like $/dev/documents$}.
    .2 [...].
    .2 publish\DTcomment{folder for published documents}.
      .3 articles\DTcomment{...such as articles}.
      .3 books\DTcomment{...or books}.
      .3 lecture\_notes\DTcomment{...or lecture notes for computer science}.
      .3 presentations\DTcomment{...or general presentations}.
      .3 [...].
    .2 [...].
  }
