minor: fixing build errors

Author: Sam Kleinman

source/index.txt

@@ -67,7 +67,7 @@ more information on the MongoDB Documentation project.
 
      - :doc:`Shell Methods </reference/javascript>`
 
-       :doc:`Query Operators </reference/operators>`
+       :doc:`Query Operators </reference/operator>`
 
        :doc:`Database Commands </reference/commands>`
 

source/release-notes/2.4.txt

@@ -72,7 +72,7 @@ spherical queries and supports the following `GeoJSON
 - ``Polygon``
 
 The ``2dsphere`` index supports all current geospatial :doc:`query
-operators </reference/operator-query-geospatial>` and introduces the following new
+operators </reference/operator/query-geospatial>` and introduces the following new
 query operator for queries on GeoJSON data:
 
 - :operator:`$geoWithin` operator