Photo by Richard T Gagnon/Getty Images Marchand has three points in his season debut – including two power-play goals. The Boston Bruins scored three goals in just over 90 seconds in the third period to beat the Detroit Red Wings, 5-1, tonight at the TD Garden. The B’s are now 6-1-0 and a perfect 4-0-0 during this homestand. Three of the Bruins’ five goals were on the power play – and two from Brad Marchand alone. Marchand registered three points total and picked up right where he left off as he made his season debut after recovering from hip surgery. Jeremy Swayman made 28 saves in his third start of the season. Here are the highlights! First period: The Bruins…