Markdown links and internal anchors in PDF

# Links & anchors

External: [the example site](https://example.com), a reference link to [the same site][example] defined at the bottom, an autolink in angle brackets <https://example.com/docs>, and a bare address that becomes a link on its own: https://example.com/report. So does an email address: contact@example.com.

Internal: jump to [the bottom section](#the-bottom-section). The link works inside the PDF, and the viewer's Back control returns you here.

Reference links keep long URLs out of the prose, which matters in a paragraph like this one, where three sources are cited in a row: [the first][src1], [the second][src2] and [the third][src3].

[example]: https://example.com
[src1]: https://example.com/sources/1
[src2]: https://example.com/sources/2
[src3]: https://example.com/sources/3

## A section in between

Enough prose to push the target onto a later line: the anchor of a heading is its text in lower case with the spaces turned into hyphens and the punctuation dropped, so "The bottom section" becomes `#the-bottom-section`.

## The bottom section

You made it. Now [go back to the top](#links-anchors).