Update Readme.md

Alexey

2018-08-15 fa7bfe3412fb22dc1781cff021477e09eb47b685

 src/darknet.c

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