Fix issue #26, Public mailing list is listed as TBD.

Signed-off-by: Bill Schmidt <wschmidt@linux.vnet.ibm.com>

specification/bk_main.xml

@@ -88,7 +88,7 @@
       <citetitle>OpenPOWER Foundation Work Group (WG) Process</citetitle> document. It was
       created using the <citetitle>Master Template Guide</citetitle> version 1.0. Comments,
       questions, etc. can be submitted to the public mailing list  for this document at 
-      <link xlink:href="http://tbd.openpowerfoundation.org">TBD</link>.</para>
+      <email>syssw-elfv2abi@mailinglist.openpowerfoundation.org</email>.</para>
     </abstract>
 
     <revhistory>