Marketing

Some weeks ago we created a short flyer that at the back shows the improved text from this one:
https://wiki.documentfoundation.org/Marketing/Material#Flyer_..._Open_secret_inside_..
and at the front a small print from a banner we produced at the same time.
Versions English and Dutch.
Open for improvemend of course for next print runs.

Added an image showing both front and back.

And the PDF that we used for production (small run, 500 copies the first time).