Fix typo
Merge pull request #215 from t-oginogin/fix_typo_commenting

Fix typo
Includes some error handling for Windows

Some participants experienced errors on Windows systems. Coaches inexperienced with Windows had to google for a solution. Perhaps this change helps participants and coaches to more quickly find a solution.
Merge pull request #218 from 5minpause/patch-1

Includes some error handling for Windows
Small heading style change for installation
Merge branch 'upstream'