Update prerequisites.mdx to use StosVPN (#63)

Signed-off-by: Stossy11 <[email protected]>

Author: stossy11

docs/getting-started/prerequisites.mdx

@@ -22,16 +22,12 @@ Users of iOS/iPadOS 16 or higher *must* have Developer Mode enabled. Do this by:
 
 > **Note:** You will only see the 'Developer Mode' option after you have successfully installed SideStore.
 
-## WireGuard
+## StosVPN
 
-SideStore utilizes an on-device WireGuard VPN which allows SideStore to communicate with internal services.
+SideStore utilizes an on-device VPN which allows SideStore to communicate with internal services.
 
-1. Download the WireGuard app from the [Official App Store](https://apps.apple.com/us/app/wireguard/id1441195209).
-2. Also, download the WireGuard config found [here](https://github.com/SideStore/SideStore/releases/download/0.3.1/SideStore.conf).
-3. Open WireGuard, and press the 'Add a Tunnel' or '+' button.
-4. Select 'Create from file or archive', and choose the SideStore.conf file.
-5. Your device may ask if you want to 'Allow VPN Configurations', choose 'Allow' and authenticate.
-6. Toggle on the SideStore VPN option.
+1. Download the StosVPN app from the [Official App Store](https://apps.apple.com/us/app/stosvpn/id6744003051).
+2. Enable the VPN.
 
 This VPN is required to be on any time you use SideStore, as most functions will not work without it.