Step 2. Change the link in the topbar
Step 3: Changing the layout of the ideas index file
Step 4: Changes the style of the details page
Thumbnails: Step 1: Adding the gem
Step 2: Uploading pictures are also resized.
Step 3: Print a thumbnail at the index page
Authentication. Step 1: Adding devise gem
Step 2: Set Up devise
Step 3: Configure devise and move the notices to application.html.erb
Step 4: Setup the User model
Step 6: Adds sign-up and login links
Step 3: Adding Gravatar to the topbar