Update index.html

Co-authored-by: Henrik Skupin <[email protected]>

Author: sadym-chromium

index.html

@@ -1652,10 +1652,10 @@ <h3>Proxy</h3>
 
 </table>
 
-<p>A <dfn>proxy url</dfn> is an optional <a>proxy schema</a> and
-  "<code>://</code>" string, followed by a valid <a>host</a>, optionally
-  followed by a colon and a valid <a>port</a>. The <a>host</a> may
-  <a data-lt="includes credentials">include credentials</a>. If the
+<p>A <dfn>proxy url</dfn> consists of an optional <a>proxy scheme</a> 
+followed by the string "<code>://</code>", a valid <a>host</a>, 
+and optionally a colon followed by a valid <a>port</a>. The <a>host</a> 
+may <a data-lt="includes credentials">include credentials</a>. If the
   <var>scheme</var> is omitted, the <var>scheme</var> is implied to be
   "<code>http</code>". If the port is omitted and <var>scheme</var> has a
   <a>default port</a>, this is the implied port. Otherwise, the port is left