Add wait for key between each query

During a presentation, it is helpful send of one query at a time. Additionally added print outputs for each.
Full address for web service at gsd.

We like the users to remember to use the full path. In that way they wont try to access gsd.itu.dk (which returns a 404), and instead use the interface exposed at /api/user.
Add documentation link

Update the presentation with the tastypie link. They will let the audience know how to make more advance queries.