update

[mdref/mdref.m6w6.name] / mdref

diff --git a/mdref b/mdref
index 3015c9c29d9b5842a171c3d1bac93172167aef61..8c22806e566c34287aa78bc481adf43bb39e3501 160000 (submodule)
--- a/mdref
+++ b/mdref
@@ -1 +1 @@
-Subproject commit 3015c9c29d9b5842a171c3d1bac93172167aef61
+Subproject commit 8c22806e566c34287aa78bc481adf43bb39e3501