[GDE] Update readme

Readme_GDE.md

@@ -10,17 +10,19 @@ Application, which helps in finding all domains of specific group and copies it
 2. Ready!
 
 ### **B. Windows 10+**
-1. Download latest installer from https://github.com/FiltersHeroes/ScriptsPlayground/releases.
+1. Download latest installer (.exe file) from https://github.com/FiltersHeroes/ScriptsPlayground/releases.
 2. Run installer to install in chosen location.
 3. Go to Start menu, find GDE in it and launch.
 4. Ready!
 
-### **C. Other OS**
+### **C. Every OS for desktop**
 1. Download latest [Python 3.6+](https://www.python.org/downloads/) and install it (make sure that pip and PATH environment variable is checked).
 2. Download latest wheel (.whl file) from https://github.com/FiltersHeroes/ScriptsPlayground/releases.
 3. Run following command from terminal:
 ```bash
-pip install path_to_wheel/GDE-version-py3-none-any.whl
+pip install path_to_wheel/GDE-version-py3-none-any.whl[Qt5]
 ```
+You can replace Qt5 with Qt6 if you want, but that may improve or worsen the aesthetic experience. For Windows 10+ recommended is Qt 6 if you're using dark mode, but most Linux desktop environments still uses Qt 5, so choice is obvious.
+
 4. Launch GDE from terminal.
 5. Ready!