message: Add python syntax formatting
diff: @@ -70,8 +70,8 @@ class VocabInfo(
  linear weights for binary classification / regression). An axis of 1
  could be used for warm-starting output layers with class vocabularies.
  - For example:
  -
  + Example Usage:
  +```python
  embeddings_vocab_info = tf.VocabInfo(
  new_vocab='embeddings_vocab',
  new_vocab_size=100,
  @@ -100,7 +100,8 @@ class VocabInfo(
  backup_initializer=tf.compat.v1.zeros_initializer(),
  axis=0)
  - Currently, only axis=0 and axis=1 are supported.
  + #Currently, only axis=0 and axis=1 are supported.
  + ```
  """
  def __new__(cls,
  