Split RELEASES.md into its top-level sections

Split RELEASES.md into its top-level sections

Usage

release_notes_sections(md)

Arguments

md

Character vector of lines, or a single string.

Value

A tibble with heading (the # line), versions (list of version strings the heading names — one, or two for a range), date (from (YYYY-MM-DD) if present), body (lines below the heading, trimmed).