docs: improve README benefits section

- Enhanced benefits description
- Clarified intelligent feeds role
- Improved readability

Author: fulleni

README.md

@@ -8,14 +8,14 @@ The essential shared Dart package providing the **Core Data Models** for the **H
 
 Think of it as the common language 🗣️ that all parts of your news application will speak!
 
-## ✨ Why `ht_shared` Matters
+## 🌟 Core Benefits of `ht_shared`
 
 *   **🧱 Unified Data Structure:** Guarantees that your `Headline`, `Source`, `User`, `FeedItem`, and configuration data are handled identically across the entire Headlines Toolkit.
 *   💡 **Powering Intelligent Feeds:** Provides the foundational models and
     configuration structures (like `EngagementRule`, `SuggestionRule`,
     `EngagementContentTemplate`, `AppConfig` enhancements) that enable the
     `ht_api` to deliver highly dynamic, personalized, and engaging content
-    feeds. Define *what* to show and *when* with unparalleled flexibility!
+    feeds. Define *what* to show and *when* with enhanced flexibility!
 *   **🚀 Rapid Development:** Start building features faster with pre-defined, robust models for common news application needs. No reinventing the wheel!
 *   **🔗 Seamless Integration:** Enables the Flutter mobile app, web dashboard, and Dart Frog API to work together flawlessly.
 *   **🎯 Consistency by Design:** Reduces errors and simplifies maintenance by providing a single source of truth for core data definitions.