These instructions were not up-to-date (they didn't mention
the different storage backends, and some variables were
tagged as optional while they were mandatory). With this
update, they should (hopefully) be more accurate! :)
I also added instructions if someone wants to run Nixery
outside of the container image (I found it convenient when
working on Nixery's code).
This page describes the various steps that Nixery goes through when
"procuring" an image.
The intention is to give users some more visibility into what is going
on and to make it clear that this is not just an image storage
service.
Uses mdBook[1] to generate a documentation overview page instead of
the previous HTML site.
This makes it possible to add more elaborate documentation without
having to deal with finicky markup.
[1]: https://github.com/rust-lang-nursery/mdBook
