message: Alpha => Beta kokoro and devsite
diff: @@ -52,21 +52,21 @@ parser.tf_inspect = tf_inspect
  tf.__all__ = [item_name for item_name, value in tf_inspect.getmembers(tf)]
  tf.__doc__ = """
  -## Tensorflow 2.0 Preview
  +## TensorFlow 2.0 Beta
  Caution: This is a developer preview. You will likely find some bugs,
  performance issues, and more, and we encourage you to tell us about them.
  We value your feedback!
  -These docs were generated from a nightly build of tensorflow 2.0.
  +These docs were generated from the beta build of TensorFlow 2.0.
  You can install the exact version that was used to generate these docs
  with:
  ```
  -pip install tf-nightly-2.0-preview=={version}
  +pip install tensorflow==2.0.0-beta0
  ```
  -""".format(version=tf.__version__)
  +"""
  FLAGS = flags.FLAGS
  