Add IPBINDING

Author: MitchTalmadge

README.md

@@ -158,6 +158,7 @@ Example: `TZ=America/Denver`
 | Name       | Description                                                                                                                                             | Default Value |
 |------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
 | `PORT`     | The port of the Web UI for the main instance. Since you can map this to any port on the host, there's hardly a reason to change it.                     | `8080`        |
+| `IPBINDING`| Which IP address the main instance will bind to. In almost all cases you should leave this as the default, unless you are doing something advanced.     | `0.0.0.0`     |
 | `USERNAME` | The username of the admin user created on first boot.                                                                                                   | `admin`       |
 | `PASSWORD` | The password of the admin user. This value is only used when creating the new user. If you use the default value, please change it after first sign-in. | `password`    |