doc: make it more clear what to run

Signed-off-by: Patrizio Bekerle <patrizio@bekerle.com>

README.md

@@ -4,6 +4,10 @@
 
 Meant to be run on a [KDE Neon](https://neon.kde.org/) (or Ubuntu) desktop to install or update applications and settings.
 
+## Installation
+
+Do those steps if you want to set up your desktop:
+
 ```bash
 # Install ansible
 sudo apt update && sudo apt install curl ansible -y
@@ -21,7 +25,9 @@ nix-channel --add https://nixos.org/channels/nixpkgs-unstable && nix-channel --u
 nix-env --install --attr devenv -f https://github.com/NixOS/nixpkgs/tarball/nixpkgs-unstable
 ```
 
-## Development
+## Ansible playbook development
+
+You don't need these if you just want so set up your desktop!
 
 ### Multipass installation