Remove about scipy in README (#51)
Remove about scipy in README (#51)

librosa has been used as the audio backend through training and generating since #38 and #49. So the note about scipy is no longer needed.
genekogan/tensorflow-wavenet,genekogan/tensorflow-wavenet,ibab/tensorflow-wavenet,thakkarV/tensorflow-wavenet,kutakieu/tensorflow-wavenet,jyegerlehner/tensorflow-wavenet,jyegerlehner/tensorflow-wavenet,kutakieu/tensorflow-wavenet,ibab/tensorflow-wavenet,thakkarV/tensorflow-wavenet