Blog posts should support multiple author in code and design

[jessycormier]

I would like the ability to have multiple authors be credited on posts. This should work in markdown like you would normally write any kind of list/array and the design should show it as well.

We'll lead with an assumption that the first person in the list is the key author for the written material and any following are the editors or contributors to it.

This could be broken down later to transform the "author" section into separate sections if more detail is needed but for now let's keep it simple by just using the author field.

[jessycormier]

Turns out it supports this how I have it now so no need to add anything for it.