update comment options description (#415)

Author: rachel-mack

source/fundamentals/crud/read-operations/retrieve.txt

@@ -211,8 +211,7 @@ You can configure the commonly used options with the following methods:
      - | Sets the collation options. 
 
    * - ``Comment`` 
-     - | Sets the comment to the query. To learn more about query comments, 
-         see the :manual:`$comment </reference/operator/query/comment/>` page.
+     - | Sets the comment to the query to make looking in the profiler logs easier.
 
    * - ``Hint`` 
      - | Sets the hint for which index to use.