[patch][wwwdocs] gcc 4.8 changes - AMD new cores

[Gopalasubramanian, Ganesh]

Hello, 

This patch adds short words about the new AMD cores that got enabled in GCC-4.8.
OK for the wwwdocs? 

Regards
Ganesh

Index: gcc-4.8/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.8/changes.html,v
retrieving revision 1.96
diff -u -r1.96 changes.html
--- gcc-4.8/changes.html        12 Feb 2013 16:33:58 -0000      1.96
+++ gcc-4.8/changes.html        13 Feb 2013 08:24:53 -0000
@@ -529,6 +529,10 @@
     information.
     </li>
     <li> Windows MinGW-w64 targets (<code>*-w64-mingw*</code>) require at least r5437 from the Mingw-w64 trunk. </li>
+    <li>Support for new AMD family 15h processors (Steamroller core) is now available
+      through <code>-march=bdver3</code> and <code>-mtune=bdver3</code> options.</li>
+    <li>Support for new AMD family 16h processors (Jaguar core) is now available
+      through <code>-march=btver2</code> and <code>-mtune=btver2</code> options.</li>
   </ul>

 <h3 id="frv">FRV</h3>