profile-manual: Fixed typo in last section

Changed "Line" to "Live" in the section heading.

(From yocto-docs rev: 73ea1f5a01891aa51c872363a60d2e0eefdf2f64)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/profile-manual/profile-manual-examples.xml

@@ -11,7 +11,7 @@
 </para>
 
 <section id='slow-write-speed-on-live-images'>
-    <title>Slow Write Speed on Line Images</title>
+    <title>Slow Write Speed on Live Images</title>
 
     <para>
         In one of our previous releases (denzil), users noticed that booting