Suggestion: mention 3RVX in the Quality of Life Improvements section

[LordDaveTheKind]

Hello,
I struggled to find a comfy way for handling the increment of volume changed by of Vol- and Vol+. Therefore I introduced 3RVX in my Windows installation.

3RVX enables to set a custom increment/decrement of sound volume (such as +/-10% of the total volume) to a shortcut. And the shortcut can be the actual Vol- and Vol+ button. Hence providing an override to the standard behaviour of the two buttons.

It also shows a transparent widget at the center of the page as soon as you press a configured shortcut.

Please let me know if it is worth of mention for improving the overall Win installation on the Steam Deck.

All the best,
Dave