title: make a request to other site from the rake task
body: <p>I'm trying to automate my database population with sample objects, so I use rake tasks. I would like to use some data from other website pages. 
  I created txt file with url list from where that information supposed to be read and ran into problem: I don't know how to make requests outside from rake task. I need to get response, extract some selectord as RSPEC allows to do. Thank you, guys!</p>