Minor: redundant term

Signed-off-by: Sam Kleinman <[email protected]>

Author: puentesarrin

source/applications/aggregation.txt

@@ -27,7 +27,7 @@ sub-fields into the top-level of results.
    Aggregation Framework <http://www.10gen.com/presentations/mongosv-2011/mongodbs-new-aggregation-framework>`_.
 
    Additionally, consider :doc:`/tutorial/aggregation-examples` and
-   :doc:`/reference/aggregation` for additional documentation.
+   :doc:`/reference/aggregation` for more documentation.
 
 Framework Components
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