Move Walkthrough content to slideshow form

[Bojak4616]

Having the Walkthrough in a slideshow is an easy way to guide users through sections of content, step by step, without them being overwhelmed by other features of the page.

Users would also have the ability to skip ahead or go back to sections quickly, maybe with #26 ?

Overall this would be an improvement from a daunting wall of text currently being displayed.

Functionality would be similar to this https://youtu.be/f9yZ0WHaFUI?t=2m31s