Update constant_space.md
Update constant_space.md

more specific link to G&J
pczarn/kollos,pczarn/kollos,jeffreykegler/kollos,jeffreykegler/kollos,jeffreykegler/kollos,pczarn/kollos,jeffreykegler/kollos,pczarn/kollos,pczarn/kollos,jeffreykegler/kollos