Merge pull request #285 from jrosell/patch-1

Reduce confusion installing nix on Linux

vignettes/b1-setting-up-and-using-rix-on-linux-and-windows.Rmd

@@ -86,17 +86,21 @@ and then relaunch WSL (Ubuntu) from the start menu.
 Afterwards, you can install Nix like business as usual. You can proceed with the
 Determinate Systems installer.
 
-### The Determinate Systems installer
+### Using the Determinate Systems installer
 
 You can use `{rix}` to generate Nix expressions even if you don't have Nix
 installed on your system, but obviously, you need to install Nix if you actually
-want to build the defined development environment and use them. Installing (and
+want to build the defined development environment and use them. 
+
+Installing (and
 uninstalling) Nix is quite simple, thanks to the installer from [Determinate
 Systems](https://determinate.systems/posts/determinate-nix-installer), a company
-that provides services and tools built on Nix. Simply open a terminal and run
-the following line (on Windows, if you cannot or have decided not to activate
-systemd, then you have to append `--init none` to the command. You can find more
-details about this on [The Determinate Nix
+that provides services and tools built on Nix.
+
+Do not use your operating system’s package manager to install Nix. Instead, 
+simply open a terminal and run the following line (on Windows, if you cannot or 
+have decided not to activate systemd, then you have to append `--init none`
+to the command. You can find more details about this on [The Determinate Nix
 Installer page](https://github.com/DeterminateSystems/nix-installer)):