Package merger contains the Merger object, which incorporates a changelog.Changelog into a full markdown changelog.

New returns a new Markdown source that will consume the specified reader.

NewFilterRenderer returns a FilterRenderer given an underlying renderer and a list of nodes whose type will be ignored.

NewValidator returns a new Validator for a headingdoc.Doc read from the supplied reader.

FilterRenderer wraps a markdown.Renderer skips calling it for certain node types.

Markdown is a changelog.Source that produces a changelog.Changelog from a markdown file that resembles the [Keep a changelog](https://keepachangelog.com/en/1.0.0/) format.

Validator is an object that validates a headingdoc.Doc.