message: Wasserstein also uses SciPy
diff: @@ -225,9 +225,10 @@ several solvers for optimization problems related to Optimal Transport.
  SciPy
  =====
  -The :doc:`persistence graphical tools </persistence_graphical_tools_user>`
  -module requires `SciPy <http://scipy.org>`_, a Python-based ecosystem of
  -open-source software for mathematics, science, and engineering.
  +The :doc:`persistence graphical tools </persistence_graphical_tools_user>` and
  +:doc:`Wasserstein distance </wasserstein_distance_user>` modules require `SciPy
  +<http://scipy.org>`_, a Python-based ecosystem of open-source software for
  +mathematics, science, and engineering.
  Threading Building Blocks
  =========================
  