Update Readme.md - Custom object training

Alexey

2017-01-11 0c30a743bd51846727447b633a4d545e8944958f

 src/voxel.c

@@ -5,6 +5,7 @@

#ifdef OPENCV
#include "opencv2/highgui/highgui_c.h"
image get_image_from_stream(CvCapture *cap);
#endif

void extract_voxel(char *lfile, char *rfile, char *prefix)