Adjusted the README so the Windows instructions are accurate
Adjusted the README so the Windows instructions are accurate

akshonesports/node-opencv,autographer/node-opencv,Queuecumber/node-opencv,autographer/node-opencv,mvines/node-opencv,akshonesports/node-opencv,mvines/node-opencv,autographer/node-opencv,piercus/node-opencv,piercus/node-opencv,Queuecumber/node-opencv,Queuecumber/node-opencv,piercus/node-opencv,piercus/node-opencv,akshonesports/node-opencv,Queuecumber/node-opencv,bmathews/node-opencv,madshall/node-opencv,peterbraden/node-opencv,akshonesports/node-opencv,mvines/node-opencv,akshonesports/node-opencv,akshonesports/node-opencv,madshall/node-opencv,bmathews/node-opencv,Queuecumber/node-opencv,madshall/node-opencv,peterbraden/node-opencv,Queuecumber/node-opencv,madshall/node-opencv,piercus/node-opencv,mvines/node-opencv,piercus/node-opencv,peterbraden/node-opencv,mvines/node-opencv,autographer/node-opencv,bmathews/node-opencv,madshall/node-opencv,mvines/node-opencv,akshonesports/node-opencv,bmathews/node-opencv,bmathews/node-opencv,bmathews/node-opencv,madshall/node-opencv,autographer/node-opencv,autographer/node-opencv,peterbraden/node-opencv