Adding more image data into blog header (or as separate image yamls)

[ryanmacklin]

In putting together the first post, I realize we could use for the splash:

• alt text
• artist name
• link to artist site/other page (tethered to artist name)
• license text
• link corresponding to license text

For instance, for the image I put up, it would be something like:

• image:
  -- location: /uploads/blog/splash/jen-theodore-7Zyl18GzDPQ-unsplash.jpg
  -- alt: mug with "I can't even" printed on it
  -- artist
  --- name: Jen Theodore
  --- link: https://unsplash.com/photos/7Zyl18GzDPQ
  -- license
  --- text: used under the Unsplash license
  --- link: https://unsplash.com/license

With it rendered under the author credit/copyright/license as:

Splash image credit: [ARTIST NAME](ARTIST LINK), [LICENSE TEXT](LICENSE LINK)

In this example:
Splash image credit: Jen Theodore, used under the Unsplash license

How's all that sound? Is any of that already implemented and I'm not not aware of it anymore? It's a nice to have for launch, but as long as we can get it going for or shortly after Portland. I want to at least have the alt text functionality so we can keep to objectives of accessibility.

[ryanmacklin]

If it makes sense for scalability, either now or later we could have these as their own files, akin to authors being their own files. In case we choose to reuse any, such as for a running series. But that's very much in the "nice to have" pile.