Finished fix typo in chap2 todo

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@204 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

TODO

@@ -53,9 +53,6 @@ These are the TODO items for the next LFS release (3.0):
   Mention that all of these can't actually be used due to kernel
   limitations (IDE goes to 16 max for example).
 
-* Type in chapter 2 - how to install software: Last paragraph: 
-	s/There is on exception/There is one exception/
-
 * Rewrite chapter 2 a little bit. Add that export LFS=/mnt/lfs could be
   added to root's .bash_profile/.bashrc (outside chroot) to make sure
   that between build sessions the variable is still set.

chapter02/install.xml

@@ -92,7 +92,7 @@ subdirectories which aren't always removed by a make clean process.
 </para>
 
 <para>
-There is on exception to that rule: don't remove the linux kernel source
+There is one exception to that rule: don't remove the linux kernel source
 tree. A lot of programs need the kernel headers, so that's the only
 directory you don't want to remove, unless you are not going to
 compile any software anymore.