Update README.md

Author: diqezit

README.md

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 # SpectrumNet - Real-Time Audio Spectrum Visualizer
 
 [![MIT License](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
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 ![Intro](https://github.com/user-attachments/assets/82777947-28cb-4d22-a9e3-166294801efb)
 
+> ### 🚀 Now Available in C++!
+>
+> For users seeking maximum performance and a lighter footprint, a native C++ version of this project is now available! **[SpectrumCpp](https://github.com/diqezit/SpectrumCpp)** is built from the ground up with Win32 and Direct2D for raw speed and efficiency.
+>
+> **Check out SpectrumCpp if you:**
+> - Need the absolute best performance, especially in overlay mode.
+> - Prefer a minimal, dependency-free executable.
+> - Are interested in native Windows development with C++.
+
 ## ✨ Key Features
 
 ### 🎧 Advanced Audio Processing