more unicode-range tweaks

Author: John Daggett

css3-fonts/Fonts.html

@@ -2098,10 +2098,10 @@ <h3 id=character><span class=secno>4.5 </span>Character range: the
    hexadecimal numbers prefixed by "U+", corresponding to <a
    href="http://www.unicode.org/charts/">Unicode character code points</a>.
    The character range can be a subset of the full character map of the
-   underlying font. The actual character map used is the intersection of the
-   unicode range specified and the underlying character map of the font. The
-   unicode-range descriptor serves as a hint for user agents when deciding
-   whether or not to download a font resource.
+   underlying font. The actual character map used during font matching is the
+   intersection of the unicode range specified and the underlying character
+   map of the font. The unicode-range descriptor serves as a hint for user
+   agents when deciding whether or not to download a font resource.
 
   <p>Unicode range values are written using hexadecimal values and are case
    insensitive. Each is prefixed by "U+" and multiple, discontinuous ranges