README refers to non-existant overlay attribute

[RyanGibb]

Removed in https://github.com/serokell/deploy-rs/commit/6fc0024f184b34089175722778e331b1e5ddadff

From the README:

      overlays = [
        deploy-rs.overlay # or deploy-rs.overlays.default
        (self: super: { deploy-rs = { inherit (pkgs) deploy-rs; lib = super.deploy-rs.lib; }; })
      ];

which I think should read:

      overlays = [
        deploy-rs.overlays.default
        (self: super: { deploy-rs = { inherit (pkgs) deploy-rs; lib = super.deploy-rs.lib; }; })
      ];

[weriomat]

Thank you, I missed this one.