Add screenshot for Plac for GTK

Changes

3 changed files (+5/-0)

• README.md
  • @@ -22,6 +22,8 @@ Third-party [Roon](https://roon.app/) clients.
    ## [Plac for GTK4](./gtk-adwaita/) +  + GTK4 application implemented using GNOME widgets. Best suited for Linux, but it also works on other systems where GTK4 and libadwaita are installed.
• assets/screenshot-gtk-adwaita.png (new)
• assets/screenshot-gtk-adwaita.png.license (new)
  • @@ -0,0 +1,3 @@
    + Copyright 2025 Shota FUJI + + SPDX-License-Identifier: CC0-1.0