message: Fix bug in the docstring for spatial_softmax to say "ij" coordinate system.
diff: @@ -2922,7 +2922,7 @@ def spatial_softmax(features,
  First computes the softmax over the spatial extent of each channel of a
  convolutional feature map. Then computes the expected 2D position of the
  points of maximal activation for each channel, resulting in a set of
  - feature keypoints [x1, y1, ... xN, yN] for all N channels.
  + feature keypoints [i1, j1, ... iN, jN] for all N channels.
  Read more here:
  "Learning visual feature spaces for robotic manipulation with
  @@ -2943,7 +2943,7 @@ def spatial_softmax(features,
  feature_keypoints: A `Tensor` with size [batch_size, num_channels * 2];
  the expected 2D locations of each channel's feature keypoint (normalized
  to the range (-1,1)). The inner dimension is arranged as
  - [x1, y1, ... xN, yN].
  + [i1, j1, ... iN, jN].
  Raises:
  ValueError: If unexpected data_format specified.
  ValueError: If num_channels dimension is unspecified.
  