Merge pull request #4 from dzatoah/pr/introducing-text-in-readme

README.md: Add introducing text + link Toms YT video.

Author: letsgamedev

README.md

@@ -1,2 +1,10 @@
 # Suffragium
 A game developed in a democratic cycle.
+
+Everyone can participate in this project. Just open a pull request
+with a feature you'd like to be added.
+Maybe your PR gets merged, or maybe not. The community decides.
+
+For more information please watch this *german* video on youtube.
+Trust me, it's not a rick roll. Or is it?
+https://www.youtube.com/watch?v=IyOwaiQkkic