fix indentation in javascript block for formatting

Author: Ed Costello

source/reference/javascript.txt

@@ -459,9 +459,9 @@ Data Aggregation
         } }
       );
 
-    .. seealso:: ":dbcommand:`aggregate`,"
-       ":doc:`/applications/aggregation`," and
-       ":doc:`/reference/aggregation`."
+   .. seealso:: ":dbcommand:`aggregate`,"
+      ":doc:`/applications/aggregation`," and
+      ":doc:`/reference/aggregation`."
 
 .. function:: db.collection.group({key, reduce, initial, [keyf,] [cond,] finalize})