ATLANTA — The Atlanta Falcons are thrilled to be playing at home. Josh Gordon is excited to be playing anywhere.Somehow tied for first in their division despite a losing record, the Falcons will be back at the Georgia Dome for the first time in six weeks when they host the Cleveland Browns on Sunday. Gordon, who led the league with 1,646 yards receiving a year ago, is making his season debut for the Browns after serving a 10-game suspension for violating the NFL’s drug policy.