niri: add support

Author: make-42

src/content/docs/installation-on-linux.mdx

@@ -233,6 +233,11 @@ window-rule {
 }
 ```
 
+#### Furthermore
+1. Using hotkey press simulation through Kando will not work for triggering keybinds registered in your Niri configuration. In that case, have Kando run a command ```niri msg action <action>``` where the action is the one configured in the your configuration along with its arguments (for example `niri msg action focus-workspace-up` or `niri msg action focus-workspace 1`)
+
+2. While `xdg-desktop-portal-gnome` (the XDG Desktop Portal used by Niri) lets you register keybinds for Kando, their triggering isn't implemented by Niri or `xdg-desktop-portal-gnome` and therefore don't work. They might be implemented in the future.
+
 ### Dusk
 
 On Dusk, you will have to install and use a compositor like `picom` or `compton` to make the transparency work.