New section header style.

Fix up a few synopses.
diff --git a/Doc/lib/libkeyword.tex b/Doc/lib/libkeyword.tex
index 24635a5..16cff84 100644
--- a/Doc/lib/libkeyword.tex
+++ b/Doc/lib/libkeyword.tex
@@ -1,7 +1,8 @@
-\section{Standard Module \module{keyword}}
+\section{\module{keyword} ---
+         Test whether a string is a Python keyword.}
 \declaremodule{standard}{keyword}
 
-\modulesynopsis{Test whether a string is a keyword in the Python language.}
+\modulesynopsis{Test whether a string is a keyword in Python.}
 
 
 This module allows a Python program to determine if a string is a