Remove all uses of \sectcode; we can now use logical markup everywhere.
diff --git a/Doc/lib/libresource.tex b/Doc/lib/libresource.tex
index 7e7a288..b07240a 100644
--- a/Doc/lib/libresource.tex
+++ b/Doc/lib/libresource.tex
@@ -1,4 +1,4 @@
-\section{Built-in Module \sectcode{resource}}
+\section{Built-in Module \module{resource}}
 \label{module-resource}
 
 \bimodindex{resource}