XML DocBook fixes.

LDP/howto/docbook/ACPI-HOWTO.xml

@@ -329,6 +329,8 @@ directory for the newly patched kernel. Remember that backups are
 </sect1>
 
 <sect1 id="kernelprep">
+<title>Download and Unpack the New Kernel</title>
+
 <sect2 id="requiredpackages">
 <title>Required packages</title>
 <para>Since I was starting on a brand new machine, I'm pretty sure I have the
@@ -409,11 +411,10 @@ it to point to the new kernel, so we'll do that as well.</para>
 		</command>
 	</para></listitem>
 </itemizedlist>
-</sect2>
 
 <para>If you are using an old kernel you will need to patch it now.
 Instructions are available from <xref linkend="patch" />.</para>
-
+</sect2>
 </sect1>
 
 
@@ -424,7 +425,7 @@ Instructions are available from <xref linkend="patch" />.</para>
 	<title>Patch Your Kernel First</title>
 	<para>If you are using an old kernel you will need to patch it before
 	you can proceed. Instructions on patching your kernel are available
-	from <xref linked="patch" />. The 2.6.x series kernels do not need to
+	from <xref linkend="patch" />. The 2.6.x series kernels do not need to
 	be patched.</para>
 </note>
 
@@ -1117,8 +1118,13 @@ enthusiastic about learning DocBook</para></listitem>
 </sect1>
 
 <appendix id="patch">
-<sect1 id="patch">
 <title>Patching Old Kernels</title>
+<para>If you are using a 2.4.x series kernel, the kernel will need to be patched
+before you can add ACPI support. This is no longer needed as of the
+version 2.6.x series kernels.</para>
+
+<sect1>
+<title>Getting the Source Files</title>
 <para>Download a fresh kernel from <ulink
 url="http://www.kernel.org">www.kernel.org</ulink>. You need to make sure you
 get a full kernel. Find the <quote>latest stable version of the Linux kernel</quote> 
@@ -1186,7 +1192,6 @@ look for the absence of errors.)</para>
 </itemizedlist>
 </sect2>
 </sect1>
-
 </appendix>
 
 <appendix id="nodebkernel">