Small grammatical error.

peterschutt · web-flow · commit 513d1beacec2 · 2019-05-24T15:19:22.000+10:00
Removed duplicate phrasing.
diff --git a/tutorials/introductory/usage.py b/tutorials/introductory/usage.py
@@ -90,7 +90,7 @@
 # Axes contains two (or three in the case of 3D)
 # :class:`~matplotlib.axis.Axis` objects (be aware of the difference
 # between **Axes** and **Axis**) which take care of the data limits (the
-# data limits can also be controlled via set via the
+# data limits can also be controlled via the
 # :meth:`~matplotlib.axes.Axes.set_xlim` and
 # :meth:`~matplotlib.axes.Axes.set_ylim` :class:`Axes` methods).  Each
 # :class:`Axes` has a title (set via
