anchor.diff:   $ bundle
   
   To upgrade the gem, specify the new version in the Gemfile and run `bundle` again.
  -Using `bundle update` is not recommended as it will also update other gems, which may not be the desired result.
  +Using `bundle update` is *not* recommended as it will also update other gems, which may not be the desired result.
   
   === (c) Linux package managers
   
  -==== Yum (Fedora 18 or greater)
  -
  -To install the gem on Fedora 18 or greater using yum, open a terminal and type:
  -
  - $ sudo yum install -y rubygem-asciidoctor
  +==== Yum (Fedora 21 or greater)
  +
  +To install the gem on Fedora 21 or greater using yum, open a terminal and type:
  +
  + $ sudo yum install -y asciidoctor
   
   To upgrade the gem, use:
   
  - $ sudo yum update -y rubygem-asciidoctor
  + $ sudo yum update -y asciidoctor
   
   TIP: Your Fedora system may be configured to automatically update packages, in which case no action is required by you to update the gem.
   
  
positive.code: You have the option of writing your own converter or providing {uri-tilt}[Tilt]-supported templates to customize the generated output or produce alternative formats.
  
  NOTE: Asciidoctor is a drop-in replacement for the original AsciiDoc Python processor (`asciidoc.py`).
  The Asciidoctor test suite has {uri-tests}[> 1,500 tests] to ensure compatibility with the AsciiDoc syntax.
  
  In addition to the standard AsciiDoc syntax, Asciidoctor recognizes additional markup and formatting options, such as font-based icons (e.g., `+icon:fire[]+`) and UI elements (e.g., `+button:[Save]+`).
  Asciidoctor also offers a modern, responsive theme based on {uri-foundation}[Foundation] to style the HTML5 output.
  
negative.code: 
  === (a) gem install
  
  Open a terminal and type (excluding the leading `$`):
  
   $ gem install asciidoctor
  
  