[3.13] gh-131535: Fix stale example in html.parser docs, make examples doctests (GH-131551)#133587

serhiy-storchaka merged 1 commit intopython:3.13python/cpython:3.13from

miss-islington:backport-ee76e36-3.13miss-islington/cpython:backport-ee76e36-3.13Copy head branch name to clipboard