chromium/third_party/blink/web_tests/external/wpt/html/syntax/parsing/README

Note: the html5lib_* files in this directory are autogenerated, as are
the tests under speculative-parsing/.

To update the generated tests, run
`wpt update-built --include html5lib speculative-parsing`.

The revision of html5lib-tests used to generate the tests is stored in
html/tools/html5lib_tests_revision