README.me: Reflect changes in horizon-gen-nix

README.md

@@ -9,13 +9,13 @@ Horizon is a haskell package set targetting new builds of GHC.
 The package set is generated from the `horizon.dhall` using the following command:
 
 ```
-nix run .#horizon-gen-nix make-package-set
+nix run .#horizon-gen-nix
 ```
 
-This will generate both the `pkgs` folder and the `initial-packages.nix`. If
-you want to regenerate a particular package in `pkgs`, delete that file from
-`pkgs`. To regenerate the entire package set from scratch, delete the `pkgs`
-folder.
+This will generate both the packages folder and the package set file. If you
+want to regenerate a particular package in the packages folder, delete that file
+from the packages folder. To regenerate the entire package set from scratch,
+delete the packages folder.
 
 If you need to do additional manual overrides to the nix code, such as
 `addPkgconfigDepends`, edit the `configuration.nix` overlay, which is applied