Further clarify LICENSE wording

[SVN r20664]

more/lib_guide.htm

@@ -250,8 +250,8 @@ library, but a reasonable effort to comply is expected.</p>
       <br>
       Note that developers should not include a copy of
         <code>LICENSE_1_0.txt</code>
-        in their libraries; Boost distributions include a copy in the Boost root 
-      directory.<br>
+        in their libraries; Boost distributions already include a copy in the 
+      Boost root directory.<br>
 &nbsp;</li>
       <li>A comment line referencing your library on the Boost web site. For 
       example:<br>