[css3-fonts] another urange tweak

Author: John Daggett

css3-fonts/Fonts.html

@@ -2484,16 +2484,16 @@ <h3 id=unicode-range-desc><span class=secno>4.5 </span>Character range: the
   <p>This descriptor defines the range of Unicode characters supported by a
    given font. The values of <span class=index-def id=lturangegt
    title="&lt;urange&gt;"><a name=value-def-urange>&lt;urange&gt;</a></span>
-   are expressed using hexadecimal numbers prefixed by "U+", corresponding to
-   <a href="http://www.unicode.org/charts/">Unicode character code
-   points</a>. The unicode-range descriptor serves as a hint for user agents
-   when deciding whether or not to download a font resource.
+   are expressed using hexadecimal numbers prefixed by "U+" or "u+",
+   corresponding to <a href="http://www.unicode.org/charts/">Unicode
+   character code points</a>. 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 ASCII
-   case-insensitive. Each is prefixed by "U+" and multiple, discontinuous
-   ranges are separated by commas. Whitespace before or after commas is
-   ignored. Valid character code values vary between 0 and 10FFFF inclusive.
-   A single range has three basic forms:
+   case-insensitive. Each is prefixed by "U+" or "u+" and multiple,
+   discontinuous ranges are separated by commas. Whitespace before or after
+   commas is ignored. Valid character code values vary between 0 and 10FFFF
+   inclusive. A single range has three basic forms:
 
   <ul>
    <li>a single code point (e.g. U+416)