message: Update bib.md
  Made correct explicit HTTPS call
diff: @@ -37,7 +37,7 @@ system, we suggest you cite this whitepaper.
  <pre>
  @misc{tensorflow2015-whitepaper,
  title={ {TensorFlow}: Large-Scale Machine Learning on Heterogeneous Systems},
  -url={http://tensorflow.org/},
  +url={https://www.tensorflow.org/},
  note={Software available from tensorflow.org},
  author={
  Mart\'{\i}n~Abadi and
  