nixos/changelog: rephrasing plasma update

Co-authored-by: Sandro <[e-mail]>

nixos/doc/manual/release-notes/rl-2111.section.md

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 - Activation scripts can now opt int to be run when running `nixos-rebuild dry-activate` and detect the dry activation by reading `$NIXOS_ACTION`.
   This allows activation scripts to output what they would change if the activation was really run.
 
-- We can now finally use Plasma on Wayland.
+- KDE Plasma now finally works on Wayland.
 
   The users/modules activation script supports this and outputs some of is actions.