creating a ruby-on-rails blog site
adding extra: real users that can a user can be logged in and modify blog with his account
needs:
user model
-username
-password
-email address
has_many :articles
has_many :comments
Todo:
registering: adds users to db
login: authenticate users
to write blog, must be user
---UPDATE--- Added basic user modes that can register TODO: validation for login only users can post view user and see their posts