DOCS-797 typo

Author: Bob Grabar

source/tutorial/perform-full-text-search.txt

@@ -38,7 +38,7 @@ array and create queries that search the array's values.
    the ``topics`` array. For example the index contains one entry for
    ``whaling`` and another for ``allegory``.
 
-   You then queries based on the keywords. For example:
+   You then query based on the keywords. For example:
 
    .. code-block:: javascript