Update docs

Change-Id: If20b45125f4598410ecc7251fda4456468c953a8
Signed-off-by: Fabian Deutsch <fabiand@fedoraproject.org>
docs: Mention submodule init

Change-Id: Ic649d06e0828cb84ed0f6621e3fa97fc1aebe287
Signed-off-by: Fabian Deutsch <fabiand@fedoraproject.org>
Restructure filesystem layout

To allow more than one appliance to live in here.

Change-Id: Iee17f1f331472efa563bed7710ce7bad601d7f14
Signed-off-by: Fabian Deutsch <fabiand@fedoraproject.org>