Fixes Readme.md for darknet_no_gpu

Rajendra Arora

2018-01-29 21a2c68da23821b435e516106811619b151193c5

 src/network_kernels.cu

@@ -114,6 +114,7 @@
    state.truth = *net.truth_gpu;
    state.train = 1;
    forward_network_gpu(net, state);
   cudaStreamSynchronize(get_cuda_stream());
    backward_network_gpu(net, state);
}