trying to improve mermaid#87

Mutti499 wants to merge 3 commits intomainbouncmpe/bouncmpe.github.io:mainfrom

79-investigate-how-to-make-course-prerequsites-graph-mobile-friendlybouncmpe/bouncmpe.github.io:79-investigate-how-to-make-course-prerequsites-graph-mobile-friendlyCopy head branch name to clipboard