message: updated pot install instructions, including conda
diff: @@ -3,7 +3,7 @@ import scipy.spatial.distance as sc
  try:
  import ot
  except ImportError:
  - print("POT (Python Optimal Transport) package is not installed. Try to run $ pip install POT")
  + print("POT (Python Optimal Transport) package is not installed. Try to run $ conda install -c conda-forge pot ; or $ pip install POT")
  """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
  See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
  