10 more tips from 2 sources and txt format

I added 10 new advices from two different sources:

• How To Play Tabletop Roleplaying Games, by Ploog & Plover - https://ploogandplover.itch.io/how-to-play-rpgs
• I Died And It Was Great, by Sasha Reneau - https://22to22.itch.io/i-died-and-it-was-great

Also added a list of all the advices and tips in pure text (txt), for those who don't want to play through the randomizer.