Update README links to GitHub Pages and fix serve display URL

- Point all book links to https://microsoft.github.io/RustTraining/
- Add local preview instructions with git clone, rustup, cargo xtask serve
- Show localhost:3000 in serve console message

Author: atulkhare4096

README.md

@@ -45,25 +45,25 @@ Pick the book that matches your background. Books are grouped by complexity so y
 
 | Book | Level | Who it's for |
 |------|-------|-------------|
-| [**Rust for C/C++ Programmers**](c-cpp-book/src/SUMMARY.md) | 🟢 Bridge | Move semantics, RAII, FFI, embedded, no_std |
-| [**Rust for C# Programmers**](csharp-book/src/SUMMARY.md) | 🟢 Bridge | Swift / C# / Java → ownership & type system |
-| [**Rust for Python Programmers**](python-book/src/SUMMARY.md) | 🟢 Bridge | Dynamic → static typing, GIL-free concurrency |
-| [**Async Rust**](async-book/src/SUMMARY.md) | 🔵 Deep Dive | Tokio, streams, cancellation safety |
-| [**Rust Patterns**](rust-patterns-book/src/SUMMARY.md) | 🟡 Advanced | Pin, allocators, lock-free structures, unsafe |
-| [**Type-Driven Correctness**](type-driven-correctness-book/src/SUMMARY.md) | 🟣 Expert | Type-state, phantom types, capability tokens |
-| [**Rust Engineering Practices**](engineering-book/src/SUMMARY.md) | 🟤 Practices | Build scripts, cross-compilation, CI/CD, Miri |
+| [**Rust for C/C++ Programmers**](https://microsoft.github.io/RustTraining/c-cpp-book/) | 🟢 Bridge | Move semantics, RAII, FFI, embedded, no_std |
+| [**Rust for C# Programmers**](https://microsoft.github.io/RustTraining/csharp-book/) | 🟢 Bridge | Swift / C# / Java → ownership & type system |
+| [**Rust for Python Programmers**](https://microsoft.github.io/RustTraining/python-book/) | 🟢 Bridge | Dynamic → static typing, GIL-free concurrency |
+| [**Async Rust**](https://microsoft.github.io/RustTraining/async-book/) | 🔵 Deep Dive | Tokio, streams, cancellation safety |
+| [**Rust Patterns**](https://microsoft.github.io/RustTraining/rust-patterns-book/) | 🟡 Advanced | Pin, allocators, lock-free structures, unsafe |
+| [**Type-Driven Correctness**](https://microsoft.github.io/RustTraining/type-driven-correctness-book/) | 🟣 Expert | Type-state, phantom types, capability tokens |
+| [**Rust Engineering Practices**](https://microsoft.github.io/RustTraining/engineering-book/) | 🟤 Practices | Build scripts, cross-compilation, CI/CD, Miri |
 
 Each book has 15–16 chapters with Mermaid diagrams, editable Rust playgrounds, exercises, and full-text search.
 
-> **Tip:** You can read the markdown source directly on GitHub, or browse the rendered site with sidebar navigation and search at the [GitHub Pages site](https://microsoft.github.io/RustTraining/).
+> **Tip:** Browse the rendered books with sidebar navigation and search at the [GitHub Pages site](https://microsoft.github.io/RustTraining/).
 >
-> **Local serving:** For the best reading experience (keyboard navigation between chapters, instant search, offline access), clone the repo and run:
+> **Local preview:** For offline reading or while contributing:
 > ```
-> # Install Rust via rustup if you don't have it yet:
-> # https://rustup.rs/
->
-> cargo install mdbook@0.4.52 mdbook-mermaid@0.14.0
-> cargo xtask serve          # builds all books and opens a local server
+> # Install Rust via rustup if you don't have it: https://rustup.rs/
+> git clone https://github.com/microsoft/RustTraining.git
+> cd RustTraining
+> cargo install mdbook mdbook-mermaid
+> cargo xtask serve    # http://localhost:3000
 > ```
 
 ---

xtask/src/main.rs

@@ -414,7 +414,7 @@ fn cmd_serve() {
     // Handle Ctrl+C gracefully so cargo doesn't report an error
     ctrlc_exit();
 
-    println!("\nServing at http://{addr}  (Ctrl+C to stop)");
+    println!("\nServing at http://localhost:3000  (Ctrl+C to stop)");
 
     for stream in listener.incoming() {
         let Ok(mut stream) = stream else { continue };