Update Readme.md - pragma-libs in How to compile

Alexey

2017-01-02 b5938098d12d5c9fe48e7cc71ae3d75b7306833f

 src/crop_layer.h

@@ -2,7 +2,6 @@
#define CROP_LAYER_H

#include "image.h"
#include "params.h"
#include "layer.h"
#include "network.h"