cleanup of \sections

Polygon/doc_tex/Polygon_ref/intro.tex

@@ -3,6 +3,8 @@
 \label{chap:polygon_ref}
 \ccChapterAuthor{Geert-Jan Giezeman \and Wieger Wesselink}
 
+\section{Reference Pages}
+
 \ccHeading{Assertions}
 \ccIndexSubitem{polygons}{assertion flags}
 \ccIndexSubitem{assertion flags}{polygon}
@@ -32,6 +34,5 @@ The assertion flags for the polygons and polygon operations use
 \ccRefIdfierPage{CGAL::right_vertex_2} \\
 \ccRefIdfierPage{CGAL::top_vertex_2} \\
 
-\lcHtml{\ccHeading{Alphabetical List of Reference Pages}}
 
 %% EOF