Photo by Richard T Gagnon/Getty Images Still undefeated at home! The Boston Bruins capitalized on special teams with two power-play tallies and Charlie McAvoy’s four assists to decisively top the Chicago Blackhawks, 6-1, tonight at the TD Garden. Patrice Bergeron added a goal and assist in the win to now sit at 999 career points. Brad Marchand also had three points and David Pastrnak had a two-goal night. Here are the highlights! First period: The Bruins opened the scoring at 4:53 of the first period on the power play. Brad Marchand found David Pastrnak skating down low into the right-wing circle where he fed him a pass for a quick one-timer past Petr Mrazek’s glove. 1-0 Bruins. Some Pasta to…