update readme

spoke/autossh-tunnel.service

@@ -1,3 +1,5 @@
+# For now, deprecated in favor of docker tunnel
+
 [Unit]
 Description=AutoSSH tunnel from spoke to hub
 After=network.target
@@ -10,4 +12,4 @@ RestartSec=10
 User=armbian
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=multi-user.target