doc: various overview-level module comments

[public-inbox.git] / lib / PublicInbox / WwwText.pm

diff --git a/lib/PublicInbox/WwwText.pm b/lib/PublicInbox/WwwText.pm
index b0f262cd08d823af81944b5484b63d849c913570..b5874cf6bad534a20daf060452884b463628440a 100644 (file)
--- a/lib/PublicInbox/WwwText.pm
+++ b/lib/PublicInbox/WwwText.pm
@@ -1,7 +1,7 @@
-# Copyright (C) 2016 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
-#
-# serves the /$INBOX/_/* endpoints from :text/* of the git tree
+
+# used for displaying help texts and other non-mail content
 package PublicInbox::WwwText;
 use strict;
 use warnings;
@@ -182,6 +182,10 @@ message threading
        $WIKI_URL/Atom_(standard)
        https://tools.ietf.org/html/rfc4287
 
+      Atom Threading Extensions (RFC4685) is supported:
+
+       https://tools.ietf.org/html/rfc4685
+
     Finally, the gzipped mbox for a thread is available for
     downloading and importing into your favorite mail client: