Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libcode.tex b/Doc/lib/libcode.tex
index 4f360bf..023d276 100644
--- a/Doc/lib/libcode.tex
+++ b/Doc/lib/libcode.tex
@@ -1,4 +1,4 @@
-\section{Standard Module \sectcode{code}}
+\section{Standard Module \module{code}}
 \label{module-code}
 \stmodindex{code}