Add information from docs/README.transfer to helper scripts
The different ways of adding the contents of the ISO to a disk can probably be turned into a script for ease of use (and information about how to install the ISO to a medium be added to the README.rst).
It could also be useful to have a wrapper around dd
(maybe even in the same script).
It would be nice to be able to do archiso-install output.iso /dev/sdb
or similar.