anchor.diff:  NOTE: The `asciidoctor-epub3` command is a temporary solution for invoking the {project-name} converter.
   We plan to remove this script once we have completed proper integration with the `asciidoctor` command.
   
  -TIP: As another example, point `asciidoctor-epub3` at the https://github.com/opendevise/github-guides-asciidoc[GitHub Guides] that we've ported to AsciiDoc, then compare the output to the real https://guides.github.com[GitHub Guides].
  +TIP: As another example, point `asciidoctor-epub3` at the {uri-github-guides-fork}[GitHub Guides] that we've ported to AsciiDoc, then compare the output to the real {uri-github-guides}[GitHub Guides].
   
   === Validate the EPUB3 Archive
   
  
positive.code: The metadata in the generated EPUB3 file is populated from attributes in the AsciiDoc document.
  The names of the attributes and the metadata elements to which they map are documented in this section.
  
  The term [term]_package metadata_ in Table 1 is in reference to the http://www.idpf.org/epub/30/spec/epub30-publications.html#sec-metadata-elem[<metadata> element] in the EPUB3 package document (e.g., [file]_package.opf_).
  The `dc` namespace prefix is in reference to the http://dublincore.org/documents/2004/12/20/dces[Dublin Core Metadata Element Set].
  
  .AsciiDoc attributes that control the EPUB3 metadata (i.e., package.opf)
  [cols="1m,3"]
  
negative.code: ****
  Kindle Format 8 (KF8) is Amazon's next generation file format offering a wide range of new features and enhancements--including HTML5 and CSS3 support--that publishers can use to create a broad range of books.
  The format is close enough to EPUB3 that it's safe to think of it simply as an EPUB3 implementation under most circumstances.
  You can read more about the format on the {uri-kf8}[Kindle Format 8 page].
  
  Amazon continues to use the _.mobi_ file extension for KF8 archives, despite the fact that they've switched from the Mobipocket format to the EPUB3-like KF8 format.
  That's why we refer to the format in this project as KF8/MOBI.
  