Update utf-8 version of tutor.

runtime/tutor/tutor.utf-8

@@ -656,7 +656,7 @@ NOTE: If you were to exit Vim and start it again with  vim TEST , the file
   3. Press the  :  character.  At the bottom of the screen  :'<,'> will appear.
 
   4. Type  w TEST  , where TEST is a filename that does not exist yet.  Verify
-     that you see  :'<,'>w TEST  before you press Enter.
+     that you see  :'<,'>w TEST  before you press <ENTER>.
 
   5. Vim will write the selected lines to the file TEST.  Use  :!dir  or  !ls
      to see it.  Do not remove it yet!  We will use it in the next lesson.