Mention that we use TeX, LaTeX, and JadeTeX to produce the printed output.

svn path=/head/; revision=10933

en_US.ISO8859-1/books/handbook/colophon.sgml

@@ -1,7 +1,7 @@
 <!--
      The FreeBSD Documentation Project
 
-     $FreeBSD: doc/en_US.ISO8859-1/books/handbook/colophon.sgml,v 1.1 2001/08/10 00:30:44 murray Exp $
+     $FreeBSD$
 -->
 
 <colophon>
@@ -11,7 +11,9 @@
     different presentation formats using <application>Jade</application>, an open source DSSSL
     engine.  Norm Walsh's DSSSL stylesheets were used with an
     additional customization layer to provide the presentation
-    instructions for Jade.</para>
+    instructions for Jade.  The printed version of this document would
+    not be possible without Donald Knuth's TeX typesetting language,
+    Leslie Lamport's LaTeX, or Sebastian Rahtz's JadeTeX macro package.</para>
 </colophon>
 
 <!--