Update README.md

README.md

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-# Onyx-Engine
+# Onyx Engine
+
+![Onyx Banner](.github/Banner.png)
+
+**Onyx** is a modern, modular, and fast C++ game engine built for real-time 2D applications.  
+
+
+---
+
+## 🧩 Structure
+
+- 🔧 **Onyx Engine** – The core runtime, managing rendering, layers, and systems.
+- 🖥️ **Obsidian Editor** – A standalone GUI editor powered by ImGui and Onyx for scene editing, live profiling, and asset management.
+- 💡 **Glint Lighting Engine** – A flexible and performant 2D dynamic lighting system.
 
-![Banner.png](.github/Banner.png)
 
 
-##