Ruby bindings

[mswiger]

Hello! If anyone finds it useful, I have created a set of Ruby bindings for both gtk-layer-shell and gtk4-layer-shell, both of which are published to RubyGems:

• https://github.com/mswiger/ruby-gtk-layer-shell
• https://github.com/mswiger/ruby-gtk4-layer-shell

Thanks for creating this library!

[wmww]

Thanks! I've added links to the readmes of both repos so people can find them.