Created User model and added annotate file to Gemfile
Executed annotate and finished 6.1
added user tests
6.2.2 done - user model validates presence of :email and :name (TDD - user_spec.rb)
user validates name length max 50
validate email format
validated email uniqueness in model +index to users email (db level validation)
added password_digest column to db schema
added tests for password
added tests for password length, mismatch and edge cases
finished implementing passwords using has_secure_password and modifying users model  (finished 6.3.4)