message: Fix missing tick in BatchNorm doc
diff: @@ -210,7 +210,7 @@ class BatchNormalization(normalization.BatchNormalizationBase):
  __doc__ = normalization.replace_in_base_docstring([
  ('{{TRAINABLE_ATTRIBUTE_NOTE}}',
  '''
  - **About setting `layer.trainable = False` on a `BatchNormalization layer:**
  + **About setting `layer.trainable = False` on a `BatchNormalization` layer:**
  The meaning of setting `layer.trainable = False` is to freeze the layer,
  i.e. its internal state will not change during training:
  