set up welcome index/controller, user new/model/controller
made /users/new.html.erb
created the users table, fixed typos in UserController
set up create method in UserController
changed pw to pw digest on users table
created session methods in ApplicationController, SessionController, tweaked welcome.index.erb
added session routing in routes.rb
adjusted SessionController, added show method to UserController
ran rspec testing for user model
modified users/show.html.erb