It started out as the Knicks’ primary goal for this season, but who can blame them if reaching it has caused them to readjust their sights higher? The sizzling Knicks tied a franchise record with 20 three-pointers to easily extend their winning streak to a baker’s dozen, cementing their first Atlantic Division crown since 1994 in the win, a 120-99 rout of the Wizards at the Garden. “We win a division, that’s accomplished. But the big picture is winning a title. I’m only in it for one thing, man,” Mike Woodson said. The division is great, because that’s what we set out to do as a team but the big picture is trying to win a championship. We’re headed in the right direction but we still have a ways to go.” The Knicks (51-26) also lead Indiana, which defeated Cleveland on Tuesday, by 2-½ games for the No.2 seed in the Eastern Conference. That would ensure home-court advantage for the first two rounds of the playoffs and put off a potential showdown with the Heat until the conference finals. “Now here it is, right here in front of us, staring us in the face to go get it. And we have to go get it,” Woodson said. “All of those things are right within our reach and I’m pushing our guys from an urgency standpoint to get wins. So that’s what it’s about.”