chore: update debian dependencies in README.md (#60)

* Update Debian dependencies in README.md

libxdo-dev was missing for me on mint 21

* Update README.md

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README.md

@@ -19,22 +19,20 @@ tray-icon lets you create tray icons for desktop applications.
 
 ## Dependencies (Linux Only)
 
-On Linux, `gtk` and `libappindicator` or `libayatnat-appindicator` are used to create the tray icon, so make sure to install them on your system.
+On Linux, `gtk`, `libxdo` is used to make the predfined `Copy`, `Cut`, `Paste` and `SelectAll` menu items work and `libappindicator` or `libayatnat-appindicator` are used to create the tray icon, so make sure to install them on your system.
 
 #### Arch Linux / Manjaro:
 
 ```sh
-pacman -S gtk3 libappindicator-gtk3 #or libayatana-appindicator
+pacman -S gtk3 xdotool libappindicator-gtk3 #or libayatana-appindicator
 ```
 
 #### Debian / Ubuntu:
 
 ```sh
-sudo apt install libgtk-3-dev libappindicator3-dev #or libayatana-appindicator3-dev
+sudo apt install libgtk-3-dev libxdo-dev libappindicator3-dev #or libayatana-appindicator3-dev
 ```
 
-if you use `tray_icon::muda` module, make sure to checkout https://github.com/tauri-apps/muda#dependencies
-
 ## Examples
 
 #### Create a tray icon without a menu.