Update README.md

Edmond Yoo

2018-10-11 6ef5acd9c612140cbf698c5ca1295bdba0293801

 src/darknet.c

@@ -377,6 +377,7 @@
#else
    if(gpu_index >= 0){
        cuda_set_device(gpu_index);
        check_error(cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync));
    }
#endif