title: How do we use MongoDB in Ruby on Rails?
body: <p>Does anybody know how to create a rails application that use noSql database?
  We do rails new app_name -d mysql for using mysql database, I need to know what command I should fire in case of noSql database.how to configure and connect to that database and how to use table from it. I need reference link to study. Can anybody help me out?
  Thanks.</p>