Add display banner for iOS app on iTunes Store

I want to show a marketing banner for my iOS app on the App Store like Tinder and Chillar do. How can I do this in iTunes Connect? Here is a screenshot of what I am referring to:

iTunes Store screenshot of Tinder

How do I promote my iOS app?

From the menu on your account dashboard, choose the app you want to promote. You'll be given the option to promote only the apps associated with your linked App Store Connect account(s). If you'd like to promote more than one of your apps, you can do so from your dashboard later. You can promote up to 50 apps.

You can't. Your app has to be featured on the App Store to display those banners. If your app is in the process to become featured Apple will send you an email with the requests for those images. (http://blog.cleanshavenapps.com/app-store-promo-artwork-tips-and-sketch-template)