Preview apiary.io docs

It is possible to preview apiary docs before pushing to the repository. To do that, install apiaryio CLI:

gem install apiaryio

The executable file of the installed application is located somewhere there:

/home/jsn/.gem/ruby/gems/apiaryio-0.3.3/bin/apiary

Generate html file to preview docs and open it in the browser:

/home/jsn/.gem/ruby/gems/apiaryio-0.3.3/bin/apiary preview --output="preview.html"