DOC Fix typo in introduction.rst (#368)

hsm207 · glemaitre · commit c70333b04c94 · 2017-11-21T11:53:23.000+01:00
diff --git a/doc/introduction.rst b/doc/introduction.rst
@@ -10,7 +10,7 @@ API's of imbalanced-learn samplers
 ----------------------------------
 
 The available samplers follows the scikit-learn API using the base estimator
-and adding a sampling functionality throw the ``sample`` method::
+and adding a sampling functionality through the ``sample`` method::
 
 :Estimator:
 
