Updated conf doc

Author: bhaskarkishore

proxy.conf

@@ -96,7 +96,8 @@
         # Connection timeout in seconds
         "pool_connection_timeout": 30
 
-        # Optional SSL mode. If not set, will default to `prefer`. See postgres doc for other values
+        # Optional SSL mode. If not set, will default to `prefer`.
+        # Other values as supported by tokio-postgres are `require`, `disable`
         #"ssl_mode": "require",
 
         # Optional CA certificate path for use with the above `ssl_mode` parameter