It was after sys-cacher for it's packages to be cached, but
fedora-minimal is targeted during sys-cacher installation, making
sys-cacher and any other formula that targets fedora-minimal fail.
Fixes: https://github.com/ben-grande/qusal/issues/69
- The sys-gui was not implemented;
- Light sys-net, sys-firewall, sys-audio and vault are not essential to
bootstrap other formulas; and
- Joining PCI formulas into one section is easier to find.
The main README is very large, by placing the documents in a separate
directory, we allow the user to choose explicitly what they read, giving
a better reading experience and allows a deeper understanding of the
project.