Blockquotes and rules
Blockquotes
Prefix each line with >:
> Mathematics is the art of giving the same name to different things.
>
> --- Henri PoincaréMathematics is the art of giving the same name to different things.
— Henri Poincaré
Blockquotes nest (> >) and can contain any block content – lists, code,
math, even other quotes. Use them for quoting sources; for callouts like
"Note" or "Warning" use admonitions,
which are visually distinct and translated.
Horizontal rules
Three or more hyphens on their own line:
---Asterisks (***) and underscores (___) also work. Keep a blank line above
the hyphens form – text directly above it would turn into a
setext heading
instead. Use rules sparingly; headings usually separate sections better.