diff --git a/HsH-classes.dtx b/HsH-classes.dtx
index 35882d96b68b3e6ac9576651a5c7cbe8e05470af..b7d24532c0bf90be30148b4f9d98025a1903a220 100644
--- a/HsH-classes.dtx
+++ b/HsH-classes.dtx
@@ -211,8 +211,10 @@
 \renewcommand{\layercontentsmeasure}{\@empty}
 
 %% custom commands
+% these two comand can convert decimal number into roman numerrals in etheir upper- or lowercase
 \newcommand{\uproman}[1]{\uppercase\expandafter{\romannumeral#1}}
 \newcommand{\lowroman}[1]{\romannumeral#1\relax}
+
 %</article|report>
 %
 %% load config at beginning of document