minor: fix typo

Author: ksuarz

source/tutorial/manage-the-database-profiler.txt

@@ -334,7 +334,7 @@ When enabled, profiling has a minor effect on performance. The
 :data:`system.profile <<database>.system.profile>` collection is a
 :term:`capped collection` with a default size of 1 megabyte. A
 collection of this size can typically store several thousand profile
-documents, but some application may use more or less profiling data per
+documents, but some applications may use more or less profiling data per
 operation.
 
 Change Size of ``system.profile`` Collection on the Primary