Add slide pack for promotion

[MoritzWeber0]

I've been asked a few times to share some backgrounds about FIP and the FIP Guide itself. So it would be great to have a slide pack (e. g. Powerpoint or a Pandoc slide show that contains the most important information about FIP.

[therobrob]

Hab zum Start mal ein Google Doc erstellt: https://docs.google.com/presentation/d/1f474HeEzBuqg748xmwNYuX88XPWxzszwRxMaj6io3Jw/edit?usp=drive_link