Added Pry, updated links to point to Rails on Maui

* Updated README.md
Created user/finder_methods concern

All tests pass.
Moved tests to own file for User::FinderMethods concern
Create User::FeedMethods concern
Add Draper Gem
Generate Draper decorator file for User model

Ran command:
  rails generate decorator User
Convert partial to use parameters rather than instance variable.

Partial takes parameter user.
Add launchy gem for debugging specs

Call save_and_open_page to open html in browser to debug specs.
Added user_decorator.rb

* Displays number of followers with formatted number
* Added (slow) test
Improved test speed by consolidating 2 slow tests.

Rather than create the 1000 users twice...Do it once.
Disable super slow spec UserDecorator spec

* Too slow because it creates 1000 users.
* Marking with xit.