Enhance waveform generation details in README

Expanded description of waveform generation methods.

Author: Mopriestt

README.md

@@ -11,7 +11,7 @@ Powered by [Nitro Modules](https://nitro.margelo.com/) and `dr_libs` for stable,
 - ⚡️ **High Performance**: Uses C++ directly via JSI for near-native performance.
 - 🪶 **Lightweight**: Zero heavy dependencies like FFmpeg. Uses `dr_libs` for minimal footprint.
 - 🔊 **Format Support**: Decodes **MP3**, **WAV**, and **FLAC** files.
-- 🌊 **Waveform Generation**: High-speed RMS waveform data generation for visualization.
+- 🌊 **Waveform Generation**: High-speed waveform data generation for visualization. Multiple methods supported including **RMS**, **LUFS** and **Abs Mean**.
 - 🎹 **Raw PCM Data**: Access raw `Float32` audio samples for finding peaks, normalization, or custom processing.
 - 📱 **Cross-Platform**: Works on **iOS** and **Android**.