anchor.diff:  
   When rendering a string, the header and footer are excluded by default
   to make Asciidoctor consistent with other lightweight markup engines
  -like Markdown. If you want the header and footer, just declare it as
  -an option:
  +like Markdown. If you want the header and footer, just enable it using
  +the +:header_footer+ option:
   
    puts Asciidoctor.render('*This* is it.', :header_footer => true)
   
  
positive.code: Asciidoctor
  ===========
  :asciidoctor: http://asciidoctor.org
  :asciidoctor-source: http://github.com/asciidoctor/asciidoctor
  :asciidoc: http://asciidoc.org
  :gitscm-next: https://github.com/github/gitscm-next
  :asciidoctor-seed: https://github.com/github/gitscm-next/commits/master/lib/asciidoc.rb
  :templates: https://github.com/asciidoctor/asciidoctor/blob/master/lib/asciidoctor/backends
  :tilt: https://github.com/rtomayko/tilt
  :freesoftware: http://www.fsf.org/licensing/essays/free-sw.html
  :issues: https://github.com/asciidoctor/asciidoctor/issues
  :gist: https://gist.github.com
  :fork: http://help.github.com/fork-a-repo/
  :branch: http://learn.github.com/p/branching.html
  :pr: http://help.github.com/send-pull-requests/
  :license: https://github.com/asciidoctor/asciidoctor/blob/master/LICENSE
  :idprefix:
  
  {asciidoctor}[Asciidoctor] is a pure Ruby processor for converting
  {asciidoc}[AsciiDoc] source files and strings into HTML 5, DocBook 4.5
  and other formats. It's
  http://rubygems.org/gems/asciidoctor[published as a RubyGem] and is
  available under the MIT open source license.
  
  image::https://travis-ci.org/asciidoctor/asciidoctor.png?branch=master["Build Status", link="https://travis-ci.org/asciidoctor/asciidoctor"]
  
  Asciidoctor uses a set of built-in ERB templates to render the document
  to HTML 5 or DocBook 4.5. We've matched the rendered output as close as
  
negative.code: 
  or in the http://asciidoctor.org/man/asciidoctor[man page].
  
  There is also an +asciidoctor-safe+ command, which turns on safe mode by
  default, preventing access to files outside the parent directory of the
  source file. This mode is very similar to the safe mode of
  +asciidoc.py+.
  
  === Ruby API
  
  