Provide more contextual information for "artwork" on the p5 homepage

[iamjessklein]

On the homepage right now there are these beautiful p5 art pieces that are interesting and explanatory. They provide a show vs. tell approach to explaining how useful and powerful p5 could be in the hands of talented artists.

I was thinking that it would be great to add more context to this. For one, providing a link to even just a blogpost from the "tombstone" information on the bottom left corner of the page.

Currently it links to this (the artist's portfolio page):

I mentioned this at the p5 hangout today and @lmccart and @shiffman and I riffed a bit on how neat it would be to encourage contributors to share their process on their projects in a "how to"/ tutorial format - a la make magazine.

Basically, this is a great opportunity space for community sourced tutorials, demos and in fact a possibly more integrated connection to the reference section of the site. This could also be a great way to populate our "examples".