MONTREAL — Cole Caufield scored his second goal of the playoffs and added an assist as the Montreal Canadiens beat the Buffalo Sabres 6-2 in a dominant Game 3 on Sunday night to take a 2-1 lead in their second-round playoff series.Alex Newhook had two goals, including an empty-netter, and Zachary Bolduc, Juraj Slafkovsky and Kirby Dach also scored for Montreal.Lane Hutson and Jake Evans each had two assists, and Jakub Dobes made 26 saves as the Canadiens won consecutive games for the first time in this season’s playoffs.The Montreal crowd broke into chants of “Do-by! Do-by!” — one of several ovations the rookie goalie received Sunday night — as Dobes burst into laughter from his crease.“It warms your heart, and I’m really proud to be a Canadien and play for this franchise,” Dobes said. “After the Tampa series, I couldn’t believe some of the things that happened in the city, but it’s so much fun. I’m just happy that the fans are having fun with this as much as we do.”It is quickly becoming the spring of Dobes in Montreal, though the candid netminder insists he’s still his same old self.“I’m not a hero, I’m just me. I’m just a goofy goalie who tries to stop pucks,” Dobes said. “I will pretty much go home, eat, watc …