Create and print promotional poster

Create and print promotional poster for https://github.com/asrob-uc3m/actas/issues/137

We actually have some really cool stuff from @smorante perhaps lost in SVN.

Start by reviewing the linked actas issue 137 and checking whether the promotional materials attributed to @smorante can be recovered from SVN. Establish the poster's required content, format, and printing process before making any design work; done means an approved promotional poster has been created and printed.

Written by the indexing model from the issue text.