message: modify ThreadingOptions usage in docstring
diff: @@ -24,14 +24,14 @@ from tensorflow.python.data.util import options
  from tensorflow.python.util.tf_export import tf_export
  -@deprecation.deprecated("data.experimental.ThreadingOptions")
  +@deprecation.deprecated_endpoints("data.experimental.ThreadingOptions")
  @tf_export("data.experimental.ThreadingOptions", "data.ThreadingOptions")
  class ThreadingOptions(options.OptionsBase):
  """Represents options for dataset threading.
  You can set the threading options of a dataset through the
  `experimental_threading` property of `tf.data.Options`; the property is
  - an instance of `tf.data.experimental.ThreadingOptions`.
  + an instance of `tf.data.ThreadingOptions`.
  ```python
  options = tf.data.Options()
  