Fix more documentation

README.md

@@ -154,7 +154,7 @@ All these ports must be exposed to the internet if you need access over the inte
 <details markdown>
   <summary>Open Section</summary>
 
-Otherwise, the Selkies-GStreamer WebRTC HTML5 interface will likely just start working if you open UDP and TCP ports 49152–65535 in your host server network and uncomment `hostNetwork: true` in `xgl.yml`. Note that running multiple desktop containers in one host under this configuration may be problematic and is not recommended. When deploying multiple desktop containers with `hostNetwork: true`, you must also pass a new `DISPLAY` environment variable such as the value `:22` into the container, that is not used with any other X11 server or container in the same host.
+Otherwise, the Selkies-GStreamer WebRTC HTML5 interface will likely just start working if you open UDP and TCP ports 49152–65535 in your host server network and uncomment `hostNetwork: true` in `xgl.yml`. Note that running multiple desktop containers in one host under this configuration may be problematic and is not recommended. When deploying multiple containers with `hostNetwork: true`, you must also pass new environment variables such as `DISPLAY=:22`, `NGINX_PORT=8082`, `SELKIES_PORT=8083`, and `SELKIES_METRICS_HTTP_PORT=9083` into the container, all not overlapping with any other X11 server or container in the same host.
 
 However, host networking may be restricted or not be desired because of security reasons or when deploying multiple desktop containers in one host. If not available, check if the container starts working after commenting out `hostNetwork: true`.