It would be useful to allow viewers to select whether to make display equations reflow onto a new line (even if in "bad" ways - I'm aware of this old thread about "good" linebreaks), rather than leaving it the choice of the author to select this.

Given that http://docs.mathjax.org/en/latest/font-support.html directs users to this repository for when they need to have mathjax deal with more glyphs than the default fonts support (in my case, I need to create custom ja-JP and zh-CN versions that have support for basic Japanese and mainland Chinese writing) it would be super helpful if the README was improved to be more... README-like =)

In OOXML: <w:footnoteReference w:customMarkFollows="1" w:id="…"/>, followed by w:t with the label that is rendered in the text.
It is not clear whether DocBook’s label attribute is intended to convey the label rendered in the note or in the text. Since we only use phrase[@role='hub:identifier'] to mark up the n