message: documentation in categorical_hinge also corrected
diff: @@ -1387,7 +1387,7 @@ def categorical_hinge(y_true, y_pred):
  """Computes the categorical hinge loss between `y_true` and `y_pred`.
  `loss = maximum(neg - pos + 1, 0)`
  - where `neg = sum(y_true * y_pred)` and `pos = maximum(1 - y_true)`
  + where `neg=maximum((1-y_true)*y_pred) and pos=sum(y_true*y_pred)`
  Usage:
  