add categories to routes.rb and create CategoriesController
update index and show views for Categories controller
generate an alphabetically sorted list of category names
generate a list of the titles of all the articles-WIP
work on articles and categories pages
update article model to change users to user
fix of the categories show page
added new text to index page and updated the WelcomeController
updated view and index pages
added bootstrap to Wikiful
added bootstrap and altered controllers to reflect change/add
change edit file for articles view
update to Article model to remove categories validation
create a migration for User model with fields for email, name and password digest
add bcrypt-ruby gem
add flash message and alter view so flash message will show
work on user signup form
modify typo in user controller
modify users view b/c of minor typo
add font awesome gem