Update README to follow demo repo standards and document packs generation bug

- Change title to standard format: "React on Rails Demo: SSR, Auto-Registration & Bundle Splitting with v15 and Rails 8"
- Add standardized ✅ Includes section with key features
- Add repo name and demo series links per CONTRIBUTING.md standards
- Document packs generation bug (#1768) with detailed problem description and workaround
- Update repository name references to react_on_rails-demo-v15-ssr-auto-registration-bundle-splitting
- Add prominent warning about CSS modules issue in auto-generated files

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

Author: justin808

README.md

@@ -1,13 +1,49 @@
-# React on Rails v15 Auto-Registration Demo 🚀
+# React on Rails Demo: SSR, Auto-Registration & Bundle Splitting with v15 and Rails 8
 
-A complete demonstration of **React on Rails v15 auto-registration** with Rails 8, showcasing file-system-based component detection, bundle splitting, and the **corrected installation sequence** that fixes the infamous "package.json not found" error.
+A fully working demo of React on Rails v15 on Rails 8, showcasing server-side rendering, auto-registration, and bundle splitting capabilities. This demo also demonstrates the **corrected installation sequence** that fixes the infamous "package.json not found" error.
 
 ![React on Rails](https://img.shields.io/badge/React%20on%20Rails-15.0-blue)
 ![Rails](https://img.shields.io/badge/Rails-8.0.1-red)
 ![React](https://img.shields.io/badge/React-19.1.1-61DAFB)
 ![Shakapacker](https://img.shields.io/badge/Shakapacker-8.3.0-green)
 ![Auto-Registration](https://img.shields.io/badge/Auto--Registration-✅-brightgreen)
 
+✅ **Includes:**
+- **Server-Side Rendering (SSR)** - React components render on the server for faster initial page loads
+- **Auto-Registration** - Components in file system are automatically discovered and registered
+- **Bundle Splitting** - Automatic code splitting for optimized loading performance (12.5KB vs 1.1MB+ bundles)
+- **CSS Modules** - Scoped CSS with automatic class name generation
+- **Multiple Dev Modes** - HMR, static, and production-like development servers
+- **Rails 8 Integration** - Latest Rails version with modern asset pipeline
+- **Installation Fix** - Corrected Shakapacker → React on Rails sequence
+
+📂 **Repo name:** `react_on_rails-demo-v15-ssr-auto-registration-bundle-splitting`
+
+📚 **Part of the** [React on Rails Demo Series](https://github.com/shakacode?tab=repositories&q=react_on_rails-demo)
+
+## ⚠️ Important: Known Issue with Packs Generation
+
+There's a bug in the `react_on_rails:generate_packs` task with CSS modules (see [#1768](https://github.com/shakacode/react_on_rails/issues/1768)).
+
+**Problem**: The generator creates invalid JavaScript syntax when handling CSS modules:
+```javascript
+// ❌ Invalid (generated)
+import HelloWorld.module from '../ror_components/HelloWorld.module.css';
+ReactOnRails.register({HelloWorld, HelloWorld.module});
+```
+
+**Workaround**: After running the generator, manually fix the generated files by removing CSS module imports from the server bundle:
+
+```javascript
+// ✅ Fixed (manual)
+import ReactOnRails from 'react-on-rails';
+import HelloWorld from '../ror_components/HelloWorld.jsx';
+
+ReactOnRails.register({HelloWorld});
+```
+
+This demo has been manually fixed to work correctly with SSR.
+
 ## 🎯 What This Demo Solves
 
 This sample application demonstrates the **critical fix** for the React on Rails installation issue where generators would fail with:
@@ -45,8 +81,8 @@ This demo includes comprehensive documentation for both developers and AI coding
 
 ```bash
 # Clone the demo repository
-git clone https://github.com/shakacode/test-react-on-rails-v15-hello-world-on-rails-v8.git
-cd test-react-on-rails-v15-hello-world-on-rails-v8
+git clone https://github.com/shakacode/react_on_rails-demo-v15-ssr-auto-registration-bundle-splitting.git
+cd react_on_rails-demo-v15-ssr-auto-registration-bundle-splitting
 
 # Install dependencies
 bundle install && npm install
@@ -89,7 +125,7 @@ This demo showcases React on Rails v15's **file-system-based auto-registration**
 - **[React on Rails Documentation](https://shakacode.gitbook.io/react-on-rails/)** - Official docs
 - **[Shakapacker Documentation](https://github.com/shakacode/shakapacker)** - Webpack integration
 - **[React on Rails Pro](https://www.shakacode.com/react-on-rails-pro)** - Advanced features
-- **[Demo Repository](https://github.com/shakacode/test-react-on-rails-v15-hello-world-on-rails-v8)** - This complete working example
+- **[Demo Repository](https://github.com/shakacode/react_on_rails-demo-v15-ssr-auto-registration-bundle-splitting)** - This complete working example
 
 ## 📊 Performance Metrics