[pushed,wwwdocs] Announce support for long fract arithmetic

[Georg-Johann Lay]

Pushed:

diff --git a/htdocs/gcc-17/changes.html b/htdocs/gcc-17/changes.html
index 1f0360b9..7bb6538f 100644
--- a/htdocs/gcc-17/changes.html
+++ b/htdocs/gcc-17/changes.html
@@ -179,6 +179,8 @@ for general information.</p>
        types.</li>
       <li>Saturated shift left for all the supported types.</li>
       <li>Saturated and unsaturated 64-bit multiplications and 
divisions.</li>
+      <li>Saturated and unsaturated <code>long _Fract</code> and
+       <code>unsigned long _Fract</code> multiplications and 
divisions.</li>
     </ul>
   </li>
   <li>The <a href="https://gcc.gnu.org/onlinedocs/gcc/Size-of-an-asm.html";

Johann