paragraph method
Standard paragraph of text.
Implementation
Parser<ParagraphNode> paragraph() =>
seq4(
position(),
ref0(paragraphInlines),
seq2(ref0(sp), [ref0(newlineSequence), endOfInput()].toChoiceParser()),
position(),
).map4(
(start, content, _, stop) =>
ParagraphNode(content, start: start, stop: stop),
);