docs: update Arch install
docs: update Arch install

deech/stack,anton-dessiatov/stack,MichielDerhaeg/stack,Blaisorblade/stack,AndrewRademacher/stack,anton-dessiatov/stack,juhp/stack,Fuuzetsu/stack,mrkkrp/stack,mrkkrp/stack,martin-kolinek/stack,Fuuzetsu/stack,MichielDerhaeg/stack,martin-kolinek/stack,deech/stack,AndreasPK/stack,juhp/stack,Blaisorblade/stack,AndrewRademacher/stack,AndreasPK/stack