the txt -> a text based

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2441 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

preface/organization.xml

@@ -40,7 +40,7 @@ location, its contents, and its installation dependencies.</para>
 enlarges the book somewhat, but we believe it makes for easier reading. Now
 you don't have to keep referencing the appendix while doing the installation.
 This going back and forth would be a real chore, especially if you're reading
-the txt version of the book.)</para>
+a text based version of the book.)</para>
 </sect2>
 
 </sect1>