Update Readme - OpenCV 3.0 or 2.4.13

Alexey

2017-08-02 e29ccc66b649f7fae75d2809b77d7b15141d1163

 src/cost_layer.h

@@ -1,7 +1,7 @@
#ifndef COST_LAYER_H
#define COST_LAYER_H
#include "params.h"
#include "layer.h"
#include "network.h"

typedef layer cost_layer;