New section header style.

Fix up a few synopses.
diff --git a/Doc/lib/libcd.tex b/Doc/lib/libcd.tex
index 7c114d8..656d156 100644
--- a/Doc/lib/libcd.tex
+++ b/Doc/lib/libcd.tex
@@ -1,4 +1,5 @@
-\section{Built-in Module \module{cd}}
+\section{\module{cd} ---
+         Interface to the CD-ROM on Silicon Graphics systems.}
 \declaremodule{builtin}{cd}
 
 \modulesynopsis{Interface to the CD-ROM on Silicon Graphics systems.}