give some advices about non-secure settings on startup

config.py

@@ -14,5 +14,9 @@ SECURE_ONLY = True
 # Compatible only with the recent clients
 # TLS_ONLY = True
 
+# The domain for TLS, bad clients are proxied there
+# Use random existing domain, proxy checks it on start
+# TLS_DOMAIN = "www.google.com"
+
 # Tag for advertising, obtainable from @MTProxybot
 # AD_TAG = "3c09c680b76ee91a4c25ad51f742267d"