added lfs-counter reference

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1288 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter09/theend.xml

@@ -41,6 +41,12 @@ running:</para>
 
 <para><screen><userinput>touch $LFS/etc/lfs-&version;</userinput></screen></para>
 
+<para>Want to be counted? Head over to <ulink
+url="http://linuxfromscratch.org/cgi-bin/lfscounter.cgi">
+http://linuxfromscratch.org/cgi-bin/lfscounter.cgi</ulink> and register as
+an LFS user by entering your name and the first LFS version you have
+used.</para>
+
 <para>Let's reboot into LFS now...</para>
 
 </sect1>