Inserted a space between 'at' and the link

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@873 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/lilo-inst.xml

@@ -3,7 +3,7 @@
 
 <para>We have chosen Lilo because we feel confortable with it, but you 
 may wish to take a look elsewhere. Someone has written a hint on 
-GRUB at<ulink
+GRUB at <ulink
 url="http://archive.linuxfromscratch.org/lfs-hints/grub-howto.txt">http://archive.linuxfromscratch.org/lfs-hints/grub-howto.txt</ulink>,
  an alternative boot loader.</para>