Great post. Very minor nitpick: ‘The small element must not be used for subheadings; for that purpose, use the hgroup element.’
‘The small element represents side comments such as small print. Small print typically features disclaimers, caveats, legal restrictions, or copyrights. Small print is also sometimes used for attribution, or for satisfying licensing requirements.’
‘The small element represents side comments such as small print. Small print typically features disclaimers, caveats, legal restrictions, or copyrights. Small print is also sometimes used for attribution, or for satisfying licensing requirements.’
(https://html.spec.whatwg.org/multipage/text-level-semantics....)