markdown.marp.pdf.outlines option to generate outlines in PDF

[yhatt]

Marp CLI v2.2.0 has new --pdf-outlines option to generate outlines in output PDF from slide pages and Markdown headings. When bumping dependency of Marp CLI, it is better to add corresponding configuration markdown.marp.pdf.outlines.

• markdown.marp.pdf.outlines
  • off: No outlines added to PDF. (default)
  • pages: Outlines based on slide pages will add to PDF. (--pdf-outlines --pdf-outlines.pages --pdf-outlines.headings=false)
  • headings: Outlines based on Markdown headings will add to PDF. (--pdf-outlines --pdf-outlines.pages=false --pdf-outlines.headings)
  • both: Outlines based on both of slide pages and Markdown headings will add to PDF. (--pdf-outlines)