Update source/release-notes/2.4.txt

fixed typos in s2d and changed polygon example to be correct (needs extra [])

Author: monkey101

source/release-notes/2.4.txt

@@ -218,7 +218,7 @@ In the first example you create a spherical geospatial index on the
 field named ``geo``, in the second example, you create a compound
 index where the first field is a normal index, and the index of the
 second field is a spherical geospatial index. Unlike ``2d`` indexes,
-fields indexed using the ``s2d`` type can do not have to be the first
+fields indexed using the ``s2d`` type do not have to be the first
 field in a compound index.
 
 You must store data in the fields indexed using the ``s2d`` index
@@ -245,7 +245,7 @@ the following GeoJSON shapes:
 
       {
         "type": "Polygon",
-        "coordinates": [ [ 40, 5 ], [ 40, 6 ], [ 41, 6 ], [ 41, 5 ], [ 40, 5 ] ]
+        "coordinates": [ [ [ 40, 5 ], [ 40, 6 ], [ 41, 6 ], [ 41, 5 ], [ 40, 5 ] ] ]
       }
 
 To query ``s2d`` indexes, all current geospatial :ref:`query operators
@@ -259,7 +259,7 @@ for ``s2d`` indexes as ``2d`` indexes.
 .. operator:: $intersect
 
    The :operator:`$intersect` selects all indexed points that
-   intersect with provided geometry. (i.e. ``Point``, ``LineString``,
+   intersect with the provided geometry. (i.e. ``Point``, ``LineString``,
    and ``Polygon``.) You must pass :operator:`$intersect` a document
    in GeoJSON format.