message: Update train.py
  Updated audio recognition tutorial link
diff: @@ -18,7 +18,7 @@ This is a self-contained example script that will train a very basic audio
  recognition model in TensorFlow. It downloads the necessary training data and
  runs with reasonable defaults to train within a few hours even only using a CPU.
  For more information, please see
  -https://www.tensorflow.org/tutorials/audio_recognition.
  +https://www.tensorflow.org/tutorials/audio/simple_audio.
  It is intended as an introduction to using neural networks for audio
  recognition, and is not a full speech recognition system. For more advanced
  