Style Guide

Formatting

Headings

Use atx-style headings.
Use level 1 for main title of the page, e.g. chapter title.
Use level 2 if exercises need to be grouped into sections.
Use level 3 for exercise numbers, even if there's no level 2 on the page.
Use title case for chapter/section headings.
Use sentence case for exercise headings.

Maximum line width and links

The maximum width for a line is 80 characters.
Long URLs can break this rule.
For links within text, avoid inline links and use reference-style instead.

Equations

To allow superscript or subscript, use <pre> and <sup> or <sub>.
For consistency, use <pre> even when there's no superscript or subscript.
Use four spaces of indentation.