Adjust the status of Tim Berners Lee in the TAG

This ensures he has permanent access to participate in the TAG,
without putting him on the critical path for any vote or quorum that
involves TAG members, notably the Council's Unanimous Short Circuit.

More broadly, this also removes him from being part of the Council,
as the Council's purpose is to replace his former role as Director in
resolving Formal Objections.

See #874

index.bs

@@ -998,9 +998,6 @@ Composition of the Technical Architecture Group</h5>
 	The [=TAG=] consists of:
 
 	<ul>
-		<li>
-			Tim Berners-Lee, who is a life member;
-
 		<li>
 			Three participants [[#TAG-appointments|appointed by the Team]];
 
@@ -1018,6 +1015,11 @@ Composition of the Technical Architecture Group</h5>
 	and <em class=rfc2119>may</em> be run at other times when initiated by the current chairs or the Team,
 	for example if a chair steps down or if a minority of the participants make such a request.
 
+	As <dfn export>Director Emeritus</dfn>,
+	Tim Berners-Lee has a permanent standing invitation
+	to all regular sessions of the Technical Architecture Group,
+	and access to their [[#tag-comm|means of communication]].
+
 	The [=Team=] also appoints a <a href="https://www.w3.org/Guide/teamcontact/role.html">Team Contact</a> [[TEAM-CONTACT]] for the TAG,
 	as described in <a href="#ReqsAllGroups"></a>.