message: formatting image_ops_impl.py
diff: @@ -1635,9 +1635,9 @@ def adjust_contrast(images, contrast_factor):
  Usage Example:
  ```python
  - >> import tensorflow as tf
  - >> x = tf.random.normal(shape=(256, 256, 3))
  - >> tf.image.adjust_contrast(x,2)
  + import tensorflow as tf
  + x = tf.random.normal(shape=(256, 256, 3))
  + tf.image.adjust_contrast(x,2)
  ```
  """
  with ops.name_scope(None, 'adjust_contrast',
  