anchor.diff:  
    asciidoctor --help
   
  -, or in the man page. There is also an `asciidoctor-safe` command, which
  -turns on safe mode, preventing access to files outside the parent
  -directory of the source file. This is very similar to the safe mode
  -of `asciidoc.py`.
  -
  -=== Asciidoctor API
  +, 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
   
   To use Asciidoctor in your application, you first need to require the
   gem:
  
positive.code: template with an ERB template, put a file named
  `block_paragraph.html.erb` in the template directory you pass to the
  `Document` constructor using the `template_dir` option.
  
  .Commandline
  If you don't like all this Ruby code just to render AsciiDoc, there's a
  commandline interface (cli) named `asciidoctor`. It should be available
  on your PATH after installing the gem. The `asciidoctor` command is a
  drop-in replacement for the `asciidoc` command from the AsciiDoc Python
  distribution.
  
  For more usage examples, see the (massive) test suite.
  
  
negative.code: == Usage
  
  Asciidoctor has both a command line interface (CLI) and an API. The
  CLI is a drop-in replacement for the `asciidoc.py` command from the
  python implementation. The API is intended for integration with other
  software projects and is suitable for server-side applications, such
  as Rails, Sinatra and GitHub.
  
  === Command line interface (CLI)
  
  After installing the `asciidoctor` gem, the `asciidoctor` commandline
  interface should be available on your PATH after installing the gem.
  To invoke it, simply execute:
  
   asciidoctor <asciidoc_file>
  
  