message: fix typo in scatter_nd_add docstring
diff: @@ -462,9 +462,8 @@ def scatter_nd_add(ref, indices, updates, use_locking=False, name=None):
  updates: A `Tensor`. Must have the same type as `ref`.
  A tensor of updated values to add to ref.
  use_locking: An optional `bool`. Defaults to `False`.
  - An optional bool. Defaults to True. If True, the assignment will
  - be protected by a lock; otherwise the behavior is undefined,
  - but may exhibit less contention.
  + If True, the assignment will be protected by a lock;
  + otherwise the behavior is undefined, but may exhibit less contention.
  name: A name for the operation (optional).
  Returns:
  