merge: DOCS-842

Author: Sam Kleinman

source/reference/collection-statistics.txt

@@ -159,7 +159,9 @@ Fields
    .. versionadded:: 2.2
 
    Reports the flags on this collection set by the user. In version
-   2.2 the only user flag is ``usePowerOf2Sizes``.
+   2.2 the only user flag is :collflag:`usePowerOf2Sizes`.
+   If :collflag:`usePowerOf2Sizes` is enabled, :stats:`userFlags` will
+   be set to ``1``, otherwise :stats:`userFlags` will be ``0``.
 
    See the :dbcommand:`collMod` command for more information on setting user
    flags and :ref:`usePowerOf2Sizes <usePowerOf2Sizes>`.