Fix localhost vs 0.0.0.0 discrepancy (#1984)

axum/README.md

@@ -53,7 +53,7 @@ async fn main() {
         // `POST /users` goes to `create_user`
         .route("/users", post(create_user));
 
-    // run our app with hyper
+    // run our app with hyper, listening globally on port 3000
     let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
     axum::serve(listener, app).await.unwrap();
 }

axum/src/lib.rs

@@ -53,7 +53,7 @@
 //!     // build our application with a single route
 //!     let app = Router::new().route("/", get(|| async { "Hello, World!" }));
 //!
-//!     // run it on localhost:3000
+//!     // run our app with hyper, listening globally on port 3000
 //!     let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
 //!     axum::serve(listener, app).await.unwrap();
 //! }