message: Standardize references in EfficientNet
diff: # pylint: disable=missing-docstring
  """EfficientNet models for Keras.
  -Reference paper:
  - - [EfficientNet: Rethinking Model Scaling for Convolutional Neural Networks]
  - (https://arxiv.org/abs/1905.11946) (ICML 2019)
  + Reference:
  + - [EfficientNet: Rethinking Model Scaling for Convolutional Neural Networks](
  + https://arxiv.org/abs/1905.11946) (ICML 2019)
  """
  from __future__ import absolute_import
  from __future__ import division
  @@ -210,7 +210,7 @@ def EfficientNet(
  classifier_activation='softmax'):
  """Instantiates the EfficientNet architecture using given scaling coefficients.
  - Reference paper:
  + Reference:
  - [EfficientNet: Rethinking Model Scaling for Convolutional Neural Networks](
  https://arxiv.org/abs/1905.11946) (ICML 2019)
  