trivial: tweak sentence wording

Author: kay-kim

source/core/replica-set-rollbacks.txt

@@ -69,7 +69,7 @@ To prevent rollbacks of data that has been acknowledged to the client,
 use :ref:`replica acknowledged write concern
 <write-concern-replica-acknowledged>` to guarantee that the write
 operations propagate to the primary and at least one secondary of a
-replica set before returning with acknowledgement.
+replica set before returning with acknowledgement to the issuing client.
 
 .. note::
 

source/includes/fact-geo-near-returns-sorted-results.rst

@@ -2,6 +2,6 @@
 :method:`~cursor.sort()` for the query, :method:`~cursor.sort()`
 re-orders the matching documents, effectively overriding the sort
 operation already performed by |geo-operation|. When using
-:method:`~cursor.sort()` with geospatial queries, consider instead
+:method:`~cursor.sort()` with geospatial queries, consider using
 :query:`$geoWithin` operator, which does not sort documents, instead of
 |geo-operation|.