anchor.diff:  Copyright (C) 2014 Thomas Kern.
   Free use of this software is granted under the terms of the MIT License.
   
  -See the {license}[LICENSE] file for details.+See the {license}[LICENSE] file for details.
  
positive.code: 
  Clone the source from GitHub:
  
   $ git clone --recurse-submodules git://github.com/nerk/asciidoctor-bs-themes
   
  NOTE: If you don't want to use GIT, you may also download the code as a +.zip+ file and unpack it 
  to a local directory.
  
negative.code: Next, switch to the 'asciidoctor-bs-themes' directory and generate the CSS files:
  
   $ cd asciidoctor-bs-themes
   $ ./buildcss
  
  This creates the following CSS files in directory +css+:
  
  