Added PDF tags in Preface.

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/6.1/BOOK@4894 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

prologue/prerequisites.xml

@@ -12,18 +12,18 @@ and installing Linux software. Before building an LFS system, we
 recommend reading the following HOWTOs:</para>
 
 <itemizedlist>
-<listitem><para>Software-Building-HOWTO
+<listitem><para remap="verbatim">Software-Building-HOWTO
 <ulink url="http://www.tldp.org/HOWTO/Software-Building-HOWTO.html"/></para>
 
 <para>This is a comprehensive guide to building and installing
 <quote>generic</quote> Unix software distributions under Linux.</para></listitem>
 
-<listitem><para>The Linux Users' Guide
+<listitem><para remap="verbatim">The Linux Users' Guide
 <ulink url="http://espc22.murdoch.edu.au/~stewart/guide/guide.html"/></para>
 
 <para>This guide covers the usage of assorted Linux software.</para></listitem>
 
-<listitem><para>The Essential Pre-Reading Hint
+<listitem><para remap="verbatim">The Essential Pre-Reading Hint
 <ulink url="&hints-root;essential_prereading.txt"/></para>
 
 <para>This is an LFS Hint written specifically for users new to Linux.

prologue/typography.xml

@@ -52,7 +52,7 @@ Therefore, this entire section is generally typed as seen.</para>
 <para><replaceable>[REPLACED TEXT]</replaceable></para>
 
 <para>This format is used to encapsulate text that is not to be typed
-as seen or copy-and-pasted.</para>
+as seen<phrase condition="html"> or copy-and-pasted</phrase>.</para>
 
 </sect1>