README: add more words to the example =)

README.md

@@ -1,20 +1,20 @@
 # krops (krebs ops)
 
-krops is a lightweigt toolkit to deploy nixos systems, remotely or locally.
+krops is a lightweigt toolkit to deploy NixOS systems, remotely or locally.
 
-fancy features include:
+## Some Features
 
 - store your secrets in passwordstore
 - build your system remotely
-- minimal overhead
+- minimal overhead (it's basically just `nixos-rebuild switch`!)
 - run from custom nixpkgs branch/checkout/fork
 
-minimal example:
+## Minimal Example
+
+Create a file named `krops.nix` (name doesn't matter) with following content:
 
-create a krops.nix somewhere
 ```
 let
-  #krops = ./.;
   krops = (import <nixpkgs> {}).fetchgit {
     url = https://cgit.krebsco.de/krops/;
     rev = "3022582ade8049e6ccf18f358cedb996d6716945";
@@ -28,11 +28,9 @@ let
     nixpkgs.git = {
       ref = "4b4bbce199d3b3a8001ee93495604289b01aaad3";
       url = https://github.com/NixOS/nixpkgs;
-
     };
     nixos-config.file = toString (pkgs.writeText "nixos-config" ''
       { pkgs, ... }: {
-
         fileSystems."/" = { device = "/dev/sda1"; };
         boot.loader.systemd-boot.enable = true;
         services.openssh.enable = true;
@@ -47,8 +45,11 @@ in
   }
 ```
 
-and run `$(nix-build krops.nix)`. This results in a script which deploys the machine via ssh & rsync on the target machine.
+and run `$(nix-build --no-out-link krops.nix)` to deploy the target machine.
+
+Under the hood, this will make the sources available on the target machine
+below `/var/src`, and execute `nixos-rebuild switch -I /var/src`.
 
 ## References
 
-- [Blog post with in-depth example](http://tech.ingolf-wagner.de/nixos/krops/) by [Ingolf Wagner](https://ingolf-wagner.de/)
+- [In-depth example](http://tech.ingolf-wagner.de/nixos/krops/) by [Ingolf Wagner](https://ingolf-wagner.de/)