DOC: fix rst reference to MLPClassifier
@@ -173,7 +173,7 @@ which a sample can have more than one target.
Regularization
==============
-Both :class:`MLPRegressor` and class:`MLPClassifier` use parameter ``alpha``
+Both :class:`MLPRegressor` and :class:`MLPClassifier` use parameter ``alpha``
for regularization (L2 regularization) term which helps in avoiding overfitting
by penalizing weights with large magnitudes. Following plot displays varying
decision function with value of alpha.
