message: Update `model.save` documentation.
  Remove note about `tf.keras.experimental.export_saved_model`.
diff: @@ -966,8 +966,7 @@ class Network(base_layer.Layer):
  include_optimizer: If True, save optimizer's state together.
  save_format: Either 'tf' or 'h5', indicating whether to save the model
  to Tensorflow SavedModel or HDF5. The default is currently 'h5', but
  - will switch to 'tf' in TensorFlow 2.0. The 'tf' option is currently
  - disabled (use `tf.keras.experimental.export_saved_model` instead).
  + will switch to 'tf' in TensorFlow 2.0.
  signatures: Signatures to save with the SavedModel. Applicable to the
  'tf' format only. Please see the `signatures` argument in
  `tf.saved_model.save` for details.
  