Update GD3 curriculum copy
Update GD3 curriculum copy

kidaa/codecombat,javatlacati/codecombat,codecombat/codecombat,codecombat/codecombat,codecombat/codecombat,jeremiahyan/codecombat,codecombat/codecombat,javatlacati/codecombat,kidaa/codecombat,javatlacati/codecombat,jeremiahyan/codecombat,jeremiahyan/codecombat,jeremiahyan/codecombat,kidaa/codecombat,codecombat/codecombat,javatlacati/codecombat,kidaa/codecombat,javatlacati/codecombat