wording

Author: TomAugspurger

docs/user-guide/extending.rst

@@ -83,7 +83,7 @@ Coming soon.
 Custom array buffers
 --------------------
 
-zarr-python provides control where and how arrays stored in memory through
+Zarr-python provides control over where and how arrays stored in memory through
 :mod:`zarr.buffer`. Currently both CPU (the default) and GPU implementations are
 provided (see :ref:`user-guide-gpu` for more). You can implement your own buffer
 classes by implementing the interface defined in :mod:`zarr.abc.buffer`.