Defined routes for all the actions
Created Comics model and generated migration

Created comics table with non null value for title
Updated the existing data in seeds with missing image urls
Styled image classes
Rendered images in index page

Two different styles for available images and unavailable images. Show
the title if image is unavailable
Modified individual comic page
Updated create comic form

Rendered form partial from new.html
Modified paths for view and add links
Defined all actions in controller class