Merge pull request #343 from github/anticomputer-bump-version-0.29.0.13

Changelog and version bump for 0.29.0.13

Merge pull request #339 from github/anticomputer-bump-version-0.29.0.12

Changelog and version bump for 0.29.0.12

Merge pull request #325 from github/0.29.0.gfm.11-changelog

Bump version and start Changelog for 0.29.0.gfm.11

Merge pull request #317 from github/0.29.0.gfm.10

0.29.0.gfm.10

Merge pull request #307 from github/footnote-backref-labels

fix: Links with unique targets should have unique labels

Changelog for 0.29.0.gfm.8

Update changelog for integer truncation commits

Merge pull request from GHSA-cgh3-p57x-9q7q

0.29.0.gfm.6

Merge pull request #274 from github/feature/add-xmpp-support

Added xmpp and mailto support to the autoprefixer extension

Bump version to `0.29.0.gfm.4`