0.13.0

Breaking

• None.

Enhancements

• Add section headings for members added by Swift conditional conformances.
  John Fairhurst
  #717

• Parse markdown in MARK comments, make the html available to themes via
  name_html mustache tag key for section headings.
  John Fairhurst

• Include protocol conformances added by extensions in Swift docs.
  John Fairhurst

Bug Fixes

• Render bullet lists correctly when followed by a callout.
  John Fairhurst
  #785

• Render markup of text inside double quotes.
  John Fairhurst
  #992

• Fix sourcekitten_sourcefile used from config file.
  John Fairhurst
  #1137