docs: remove step numbers

Numerating steps is not informative and considered bad style
People tend to follow documentation non-linearly
leaving of at one point, starting over from the middle
Documentation should be written in a way that allow for that

docs/site/guides/getting-started/installer.md

@@ -11,13 +11,12 @@ To install Clan on physical machines, you need to use our custom installer image
 ??? info "Reasons for a Custom Install Image"
     Our custom install images are built to include essential tools like [nixos-facter](https://github.com/nix-community/nixos-facter) and support for [ZFS](https://wiki.archlinux.org/title/ZFS). They're also optimized to run on systems with as little as 1 GB of RAM, ensuring efficient performance even on lower-end hardware.
 
-
-### Step 0. Prerequisites
+## Prerequisites
 
 - [x] A free USB Drive with at least 1.5GB (All data on it will be lost)
 - [x] Linux/NixOS Machine with Internet
 
-### Step 1. Identify the USB Flash Drive
+## Identify the USB Flash Drive
 
 1. Insert your USB flash drive into your computer.
 
@@ -45,7 +44,7 @@ To install Clan on physical machines, you need to use our custom installer image
 sudo umount /dev/sdb1
 ```
 
-### Step 2. Installer
+## Installer
 
 === "**Linux OS**"
     **Create a Custom Installer**
@@ -118,7 +117,7 @@ sudo umount /dev/sdb1
     !!! Note
         If you don't have `wget` installed, you can use `curl --progress-bar -OL <url>` instead.
 
-    ### Step 2.5 Flash the Installer to the USB Drive
+    ## Flash the Installer to the USB Drive
 
     !!! Danger "Specifying the wrong device can lead to unrecoverable data loss."
 
@@ -151,11 +150,10 @@ sudo umount /dev/sdb1
       If you need to configure Wi-Fi first, refer to the next section.
       If Multicast-DNS (Avahi) is enabled on your own machine, you can also access the installer using the `nixos-installer.local` address.
 
+## Boot From USB Stick
 
-###  Step 3: Boot From USB Stick
 - To use, boot from the Clan USB drive with **secure boot turned off**. For step by step instructions go to [Disabling Secure Boot](../../guides/secure-boot.md)
 
-
 ## (Optional) Connect to Wifi Manually
 
 If you don't have access via LAN the Installer offers support for connecting via Wifi.
@@ -203,4 +201,3 @@ Press ++ctrl+d++ to exit `IWD`.
     Press ++ctrl+d++ **again** to update the displayed QR code and connection information.
 
 You're all set up
-