docs(readme): updates

Author: alebabai

README.md

@@ -10,7 +10,7 @@
 
 ### Environment variables
 
-- `ADDRESSES` - _provide one or more `HOST:PORT` pairs separated by space for services to be exposed_
+- `ADDRESSES` - _provide one or more `HOST:PORT` pairs separated by space or new line for services to be exposed_
 - `OUTPUT_FILE` - _prefix of the exposed url (default `$timestamp`)_
 - `SSH_TUNNEL_HOST` - _host of the service that will be used as ssh-server (default `serveo.net`)_
 - `SSH_TUNNEL_PORT` - _port of the service that will be used as ssh-server (default `443`)_