Updated Modpack setup and update guide

.vitepress/config.mts

@@ -9,6 +9,7 @@ const vitePressOptions: UserConfig = {
     nav: [
       { text: "Home", link: "/" },
       { text: "Server", link: "/server/" },
+      { text: "Map", link: "https://map.brixserver.uk" },
     ],
 
     search: {

site/index.md

@@ -8,4 +8,7 @@ features:
   - title: Retards Server
     details: Come scaricare Minecraft, entrare nel Server ed altro ancora.
     link: /server/
+  - title: Mappa
+    details: La mappa del Retards Server.
+    link: https://map.brixserver.uk
 ---