Brought Example up to spec

docs/NATIVE-HOST-WEB-SERVER.md

@@ -4,6 +4,10 @@
 WebTransport sessions are returned by `accept()` for application messages.
 `MTPWebServer` and `MTPHost` cannot bind the same IP and port.
 
+The repository's combined server example registers `/` on `MTPWebServer` and
+returns `OK` while the process is running. The route is served over HTTP/3 at
+`https://localhost:8080/` on the same QUIC endpoint as WebTransport MTP sessions.
+
 ## WebServerConfig
 
 | Builder | Default | Purpose |
@@ -73,7 +77,7 @@ let mut server = MTPWebServer::new(host, web).await?;
 
 while let Some(connection) = server.accept().await? {
     // connection: WebMTPConnection
-    while let Ok(message) = connection.receiver.receive().await {
+    while let Ok(message) = connection.receive().await {
         println!("received MTP message {}", message.get_id());
     }
 }