Pinch-hitter Ryan Theriot came through for the Cardinals when they needed a big hit. His go-ahead double with the bases loaded in the seventh inning gave St. Louis an 11-6 win over the New York Mets 11-6 Tuesday night. They needed it just to keep pace with Atlanta, which also won Tuesday night. “The Braves can lose the rest of the games that they got left and if we don’t take care of…