Adding new page into Rails 4 Application

I have new Rails project, in the project I have a controller, view and model named as Customer. Now, what I need is that beside the CRUD actions I need to add two new pages like:

1. http://ift.tt/1KIvbVv

2. http://ift.tt/1FnP07H

And I want to insert code in these files. How do I achieve this I mean creating new sale and lease links?