Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libhtmllib.tex b/Doc/lib/libhtmllib.tex
index 7737845..c856b42 100644
--- a/Doc/lib/libhtmllib.tex
+++ b/Doc/lib/libhtmllib.tex
@@ -1,4 +1,4 @@
-\section{Standard Module \sectcode{htmllib}}
+\section{Standard Module \module{htmllib}}
 \label{module-htmllib}
 \stmodindex{htmllib}
 \index{HTML}