The idea is that you setup your markdown slide files in section subdirectories and then startup the showoff server in that directory. It will read in your showoff.json file for which sections go in which order and then will give you a URL to present from.
[~/sinatra/showoff(master)]$ showoff --help
NAME
showoff -
SYNOPSIS
showoff [global options] command [command options] [arguments...]
VERSION
0.7.0
GLOBAL OPTIONS
--help - Show this message
--version - Display the program version
COMMANDS
add, new - Add a new slide at the end in a given dir
create, init - Create new showoff presentation
github - Puts your showoff presentation into a gh-pages branch
help - Shows a list of commands or help for one command
heroku - Setup your presentation to serve on Heroku
serve - Serves the showoff presentation in the specified (or current) directory
static - Generate static version of presentation
Casiano Rodriguez León 2015-01-07