Document that Emacs 23 will likely ship with Org-mode 6.13.

ORGWEBPAGE/index.org

@@ -51,7 +51,7 @@ This package works on Emacs 23 and 22, and (with minor restrictions)
 on Emacs 21 and XEmacs 21 (where you must also use
 /xemacs/noutline.el/ shipped with Org-mode).  The Emacs 22.2 release
 ships with Org-mode version 4.67d.  The Emacs 23 release is expected
-to ship with 6.12a. The latest CVS emacs trunk usually contains a
+to ship with 6.13. The latest CVS emacs trunk usually contains a
 fairly recent version, but may lag a bit behind the website release.
 
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