New section header style.

Fix up a few synopses.
diff --git a/Doc/lib/libresource.tex b/Doc/lib/libresource.tex
index 887268e..1d70e9e 100644
--- a/Doc/lib/libresource.tex
+++ b/Doc/lib/libresource.tex
@@ -1,4 +1,5 @@
-\section{Built-in Module \module{resource}}
+\section{\module{resource} ---
+         Resource usage information.}
 \declaremodule{builtin}{resource}