add commontex/ to the list of directories described here
diff --git a/Doc/doc/doc.tex b/Doc/doc/doc.tex
index 6c77ba0..47fd3b5 100644
--- a/Doc/doc/doc.tex
+++ b/Doc/doc/doc.tex
@@ -148,10 +148,11 @@
         the formatting processes.
 
         \begin{tableii}{p{.75in}|p{3in}}{filenq}{Directory}{Contents}
-          \lineii{perl/}{Support for \LaTeX2HTML processing}
+          \lineii{commontex/}{Document content shared among documents}
+          \lineii{perl/}     {Support for \LaTeX2HTML processing}
           \lineii{templates/}{Example files for source documents}
           \lineii{texinputs/}{Style implementation for \LaTeX}
-          \lineii{tools/}{Custom processing scripts}
+          \lineii{tools/}    {Custom processing scripts}
         \end{tableii}
 
   \end{definitions}