mehtaparitosh

Installing Rails in Ubuntu:
https://gorails.com/setup/ubuntu/16.04

Installing atom in rails:
http://tipsonubuntu.com/2016/08/05/install-atom-text-editor-ubuntu-16-04/ 	 

Adding fields to user devise:
http://www.bogotobogo.com/RubyOnRails/RubyOnRails_Devise_Adding_User_Field_and_Customization_Update_Saved.php

Replace HTML to HAML	

mehtaparitosh

Upload photos from Rails app to AWS S3 cloud
  https://code.tutsplus.com/tutorials/rails-image-upload-using-paperclip-in-a-rails-application--cms-25974
  https://devcenter.heroku.com/articles/paperclip-s3

For a walkthrough of upgrading from 4 to 5 and aws-sdk >= 2.0 you can watch
  http://rubythursday.com/episodes/ruby-snack-27-upgrade-paperclip-and-aws-sdk-in-prep-for-rails-5

Creating a Single USer Application
  https://github.com/plataformatec/devise/wiki/How-To:-Set-up-devise-as-a-single-user-system