tree 1c07c9457b4a1b57414a1ad9be90612026e5924b
parent 4fc867c049bb739700828da92c16861ee4eb1703
author Marc Kupietz <kupietz@ids-mannheim.de> 1787644266 +0300
committer Marc Kupietz <kupietz@ids-mannheim.de> 1787644266 +0300

overview TOC: only chapter headings by default, two columns with sub-headings

The overview table of contents now lists only top-level (#) headings by
default. Adding {data-overview-subheadings=true} to the overview
heading opts in to the ## sub-headings below their chapters, which are
then laid out in two CSS columns (chapters kept intact across column
breaks).

Change-Id: Ic916c07b5479e8d19fd942e9151b0a471bf039a4