sample config: add no-anchors

sample-lnd.conf

@@ -938,8 +938,8 @@ litecoin.node=ltcd
 ; BTC
 ; protocol.wumbo-channels=true
 
-; Set to enable experimental support for anchor commitments, won't work with watchtowers yet.
-; protocol.anchors=true
+; Set to disable support for anchor commitments
+; protocol.no-anchors=true
 
 [db]
 ; The selected database backend. The current default backend is "bolt". lnd