Where should publications and other non-vignette documentation live?

[billdenney]

@kestrel99 and @mattfidler , I noticed that Justin moved the cheat sheets here. (Thanks!) And, as I was thinking about it, we will likely accumulate a collection of publications, posters, cheat sheets, and other items that don't fit well into the normal package hierarchy.

I think it would be preferable to have them in a different directory to keep the file structure a bit cleaner. I don't know of a good place for them, though. For a general similarity to the data-raw directory that is often used for creating the data in a package, what do you think about moving these items into a doc-raw directory?

[mattfidler]

https://github.com/nlmixrdevelopment/Publications is one approach.