PITTSBURGH — The Pittsburgh Pirates continued their great month of May with another series win, this time against the Colorado Rockies. The Pirates took the first game of the series on May 12, 3-1, then the final game of the series on May 14, 7-2, giving them a series victory over the Rockies at PNC Park, who took the second game of the series on May 13, 10-4. It marked the third series win this month for the Pirates and improves them to 24-20 on the season and also 13-10 at PNC Park, keeping them well within their goals of contending for the playoffs. The Pirates had a few standout players against the Rockies that led the way and helped secure that series victory. Paul Skenes Flirts With Perfection Again Pirates right-handed starting pitcher Paul Skenes has had a legitimate chance to throw a perfect game in three of his past four starts and his outing in the series opener vs. the Rockies was much of the same.…