[wwwdocs] minor markup improvements for gcc-4.6/changes.html

[Gerald Pfeifer]

Just adding <code> in two cases.  Thanks to Jason for documenting all
this in the first place!

Gerald

Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.6/changes.html,v
retrieving revision 1.12
diff -u -3 -p -r1.12 changes.html
--- changes.html	19 May 2010 16:07:19 -0000	1.12
+++ changes.html	23 May 2010 19:25:40 -0000
@@ -51,8 +51,8 @@
 
   <ul>
     <li>Improved <a href="cxx0x_status.html">experimental support for the
-    upcoming C++0x</a> ISO C++ standard, including support for nullptr
-    (thanks to Magnus Fromreide).</li>
+    upcoming C++0x</a> ISO C++ standard, including support for
+    <code>nullptr</code> (thanks to Magnus Fromreide).</li>
 
     <li>When an extern declaration within a function does not match a
     declaration in the enclosing context, G++ now properly declares the
@@ -72,12 +72,12 @@
     The old behavior can be restored with <code>-fstrict-enums</code>.</li>
 
     <li>The new <code>-fnothrow-opt</code> flag changes the semantics of
-      a <code>throw()</code> exception specification to match the proposed
-      semantics of the <code>noexcept</code> specification: just call
-      terminate if an exception tries to propagate out of a function with
-      such an exception specification.  This dramatically reduces or
-      eliminates the code size overhead from adding the exception
-      specification.</li>
+    a <code>throw()</code> exception specification to match the proposed
+    semantics of the <code>noexcept</code> specification: just call
+    <code>terminate</code> if an exception tries to propagate out of a
+    function with such an exception specification.  This dramatically
+    reduces or eliminates the code size overhead from adding the exception
+    specification.</li>
   </ul>
 
   <h4>Runtime Library (libstdc++)</h4>