Dockerfile: remove "deploybase" stage, and inline instead
Dockerfile: remove "deploybase" stage, and inline instead

The "deploybase" stage was only used for the final stage.

This patch inlines the steps from that stage to the final stage
itself. In the process, changing the order of copying the NGINX
configuration file to _after_ the docs were copied. This prevents
having to copy the archived docs when making a change in the NGINX
configuration. The NGINX configuration file _will_ now be copied
on each rebuild, but the file is small, and as such is still faster
than copying all archives.

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

docker/docker.github.io,docker/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io