Fixing accidental removal of <screen> tag

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@782 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter05/kernel-inst.xml

@@ -14,6 +14,7 @@ The kernel configuration file is created by running the following command:
 </para>
 
 <para>
+<screen>
 <userinput>make mrproper &amp;&amp;</userinput>
 <userinput>yes "" | make config &amp;&amp;</userinput>
 <userinput>make dep &amp;&amp;</userinput>