// Package widows keeps the last word of a paragraph or heading from falling alone onto its own line.
//
// Contributes: a Markdown AST transformer (PhaseParse).
// Cascade keys: none.
// Contract fields: none — it changes one space in the text, and nothing a theme reads.
// Not doing: hyphenation, orphans, balancing headings across lines — those are the theme's typography.
package widows