Added heroku secrets
Added rails_12 factor gem
Styled the add new post form
New post link no longer shown unless user is signed in
Styled posts display page so panel views are of the same height
Added user name to user table
Can add a tag to a post
Can add more than one tag to a post
Does not duplicate tag names
Tags must start with #
Grouped posts into groups of 3 so that each row is of the same height