tmux: add note for tmux-direct in module option

Signed-off-by: Maurice Zhou <yuchen@apvc.uk>

Changed files
+4 -1
nixos
modules
programs
+4 -1
nixos/modules/programs/tmux.nix
···
default = defaultTerminal;
example = "screen-256color";
type = types.str;
-
description = lib.mdDoc "Set the $TERM variable.";
+
description = lib.mdDoc ''
+
Set the $TERM variable. Use tmux-direct if italics or 24bit true color
+
support is needed.
+
'';
};
secureSocket = mkOption {