Now that we have defined a simple presentation containing just 3 slides, we can
start creating them. You can either use slides from an existing directory or
create a new one:
The first slide tends to be a titlepage for the presentation.
A simple automatic titlepage generator is included which uses the information in
the presentation definition file. Simply copy titlepage.xml into your slides
directory and as you saw in the presentation definition file the first slide
was defined to be slides/foo/titlepage.xml.
cp slides/titlepage.xml slides/foo
Your titlepage should now work.