README.md: add notes to How to compile on Windows

Jud White

2018-03-25 c6ecf1e0420737eafeb99b27b1d716b46a6cbb7a

1
2
3
 
 
./darknet detector demo ./cfg/voc.data ./cfg/yolo-voc.cfg ./yolo-voc.weights test50.mp4 -i 0 -thresh 0.2