DOCS-665 type

Author: Bob Grabar

source/applications/optimization.txt

@@ -96,7 +96,7 @@ Use the Database Profiler to Evaluate Performance
 MongoDB provides a database profiler that shows performance
 characteristics of each operation against the database. Use the profiler
 to locate any queries or write operations that are running slow. You can
-used this information, for example, to determine what indexes to create.
+use this information, for example, to determine what indexes to create.
 
 .. todo Add below: , see :doc:`/tutorial/manage-the-database-profiler` and ...