Update sk.coffee (#4193)
Update sk.coffee (#4193)

translations:About
kidaa/codecombat,VilkkuV/codecombat,codecombat/codecombat,icodegame/codecombat,VilkkuV/codecombat,javatlacati/codecombat,codecombat/codecombat,codecombat/codecombat,icodegame/codecombat,jeremiahyan/codecombat,icodegame/codecombat,javatlacati/codecombat,fabichoi/codecombat,Zerrien/codecombat,icodegame/codecombat,kidaa/codecombat,fabichoi/codecombat,fabichoi/codecombat,jeremiahyan/codecombat,Zerrien/codecombat,codecombat/codecombat,Zerrien/codecombat,javatlacati/codecombat,kidaa/codecombat,jeremiahyan/codecombat,javatlacati/codecombat,kidaa/codecombat,VilkkuV/codecombat,javatlacati/codecombat,Zerrien/codecombat,fabichoi/codecombat,VilkkuV/codecombat,codecombat/codecombat,jeremiahyan/codecombat