anchor.diff:  
   === Command line interface (CLI)
   
  -You'll use the `asciidoctor` command to run Asciidoctor from the command line.
  +The `asciidoctor` command allows you to invoke Asciidoctor from the command line (i.e., a terminal).
   
   The following command converts README.adoc to HTML and saves the result to the file README.html in the same directory.
   The name of the generated HTML file is derived from the source file by changing its file extension to `.html`.
  
positive.code: * Rubinius 2.2.x
  * Opal (JavaScript)
  
  We welcome your help testing Asciidoctor on other platforms as well.
  Refer to <<{idprefix}contributing,Contributing>> to learn how to get involved.
  
  == Installation
  
  Asciidoctor can be installed using (a) the `gem install` command, (b) Bundler or (c) package managers for popular Linux distributions.
  
  TIP: The benefit of using a Linux package manager to install the gem is that it handles installing Ruby and RubyGems if they're not already installed on your machine.
  The drawback is that package may not be available immediately after the release of the RubyGem.
  If you need the latest version, you can always fallback to using the `gem` command.
  
  === (a) gem install
  
negative.code: Asciidoctor is open source, {repo-uri}[hosted on GitHub] and released under the MIT license.
  
  TIP: You can run Asciidoctor on the JVM using JRuby.
  You can also use {asciidoctorj-uri}[AsciidoctorJ] to invoke Asciidoctor's APIs from Java and other JVM languages.
  Asciidoctor can also be used in JavaScript.
  http://opalrb.org[Opal] is used to transcompile the code from Ruby to JavaScript to make {asciidoctorjs-uri}[Asciidoctor.js], which can be used whereever JavaScript runs, such as in a web browser or on Node.js.
  
  