Correction in chess board evaluation example & new Übungsanleitung#82

rstropek merged 2 commits intocoderdojo-linz:developcoderdojo-linz/coderdojo-linz.github.io:developfrom

BenjaminDerProgrammierer:developBenjaminDerProgrammierer/coderdojo-linz.github.io:developCopy head branch name to clipboard