Nest to-do item routes under user, update controller
Modify index method to reflect nested todo route
Change root route from non-existent todo_items#index
Update links for nested routing
Update form for nested routing
Update controller for nested routing
Create users, tweak DB relationship
Update view to accommodate nested todo_item routes
Fix error in creating to-do items
Fix exception: Change todo_item to @todo_item
Correct route in respond_to block, standardize instance variable nomenclature
Remove :get_user from before action, define todo_item_params, use in #create and #update
Specify foreign key for to-do items table
Add :title and :description fields to create/update form
Format to-do item display table
Format to-do item display table
Change params inside #create and #update so they actually work
Add link 'Show all to-do items' for current user
Add debug statement to check params
Add debug statement for params