DOCS-12492: tweak - add word during

Author: kay-kim

source/reference/command/cleanupOrphaned.txt

@@ -143,8 +143,8 @@ It is also possible to tune the performance impact of
 
    Changing :parameter:`rangeDeleterBatchSize` and
    :parameter:`rangeDeleterBatchDelayMS` affect all range deletion,
-   including normal :ref:`chunk
-   migration<chunk-migration-procedure>`.
+   including during normal :ref:`chunk
+   migration <chunk-migration-procedure>`.
 
    If you are temporarily modifying one or both of these parameters to
    run :dbcommand:`cleanupOrphaned`, return to their previous values