add readme to global-keybinds plugin

Author: gabrielpastori1

src/plugins/global-keybinds/readme.md

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+# Global Keybinds Plugin
+
+This plugin enables system-wide **global keyboard shortcuts** for the music player. It allows you to control media playback, volume, and track ratings (like/dislike) from anywhere in your operating system, even when the application is minimized or not in focus.
+
+## 🚀 Features
+
+* **Global Control:** Control your music while working in other applications.
+* **Customizable:** Remap any action to your preferred key combination via the plugin settings.
+* **Smart Double-Tap:** A unique feature that allows you to toggle the player window's visibility by double-pressing the Play/Pause shortcut.
+
+## 🎹 Default Shortcuts
+
+By default, the plugin is configured with the following key combinations (using `Shift` + `Ctrl` to avoid conflicts with common system shortcuts):
+
+| Action | Default Shortcut |
+| :--- | :--- |
+| **Play / Pause** | `Shift` + `Ctrl` + `Space` |
+| **Next Track** | `Shift` + `Ctrl` + `Right Arrow` |
+| **Previous Track** | `Shift` + `Ctrl` + `Left Arrow` |
+| **Volume Up** | `Shift` + `Ctrl` + `Up Arrow` |
+| **Volume Down** | `Shift` + `Ctrl` + `Down Arrow` |
+| **Like Track** | `Shift` + `Ctrl` + `=` |
+| **Dislike Track** | `Shift` + `Ctrl` + `-` |
+
+## ⚙️ Configuration & Options
+
+You can customize the behavior and key assignments through the plugin menu.
+
+### Remapping Keys
+Click on the **"Keybinds Management"** option in the plugin menu. A prompt will appear allowing you to press the new key combination you wish to assign to each action.
+
+### Window Visibility Toggle (Double Tap)
+* **Option:** `Double Tap to Toggle Window Visibility`
+* **Default:** `Enabled`
+* **How it works:**
+    * **Single Press** on the Play/Pause shortcut: Toggles media playback.
+    * **Double Press** (quickly): Shows or Hides the application window.
+
+> **Note:** If you disable this option, the Play/Pause shortcut will only control playback, regardless of how fast you press it.
+
+## 👨‍💻 Author
+
+**Gabriel Pastori**
+* 🇧🇷 Brazilian Developer
+* GitHub: [gabrielpastori1](https://github.com/gabrielpastori1)
+
+
+## 🤝 Credits
+
+This plugin was developed using the **precise-volume** plugin as a base and reference.