This patch set changes the shipyard deployment guide from
markdown to reStructuredText format. It also adds banners
to the other .rst document.
It seems that client set up using the current instructions with
Python 2.x was giving syntax errors when we try and execute the
Shipyard CLI. Hence, updates were also made to client_user_guide
to specify the usage of Python 3.x
Note that 'Drydock build' includes step that checks that the
nodes are deployed before starting 'Armada Build'. Hence we
are collapsing 'Drydock build' and 'Check deployed node status'
into a single step, i.e. 'Drydock build' instead.
Change-Id: Ie5f15b81d4dc89afb9c6800e7a181b02f2acabcc