fix: some routes

src/routes/docs/advanced/platform/+layout.svelte

@@ -3,16 +3,52 @@
 	import Sidebar, { type NavParent, type NavTree } from '$lib/layouts/Sidebar.svelte';
 
 	const parent: NavParent = {
-		backlink: '/docs',
-		href: '/docs/advanced/platform',
-		label: 'Platform',
-		icon: 'icon-play'
+		href: '/docs',
+		label: 'Platform'
 	};
 
 	const navigation: NavTree = [
+		{
+			label: 'Getting started',
+			items: [
+				{
+					label: 'Overview',
+					href: '/docs/advanced/platform'
+				}
+			]
+		},
 		{
 			label: 'Guides',
-			items: []
+			items: [
+				{
+					label: 'API keys',
+					href: '/docs/advanced/platform/api-keys'
+				},
+				{
+					label: 'Custom domains',
+					href: '/docs/advanced/platform/custom-domains'
+				},
+				{
+					label: 'Events',
+					href: '/docs/advanced/platform/events'
+				},
+				{
+					label: 'Response codes',
+					href: '/docs/advanced/platform/response-codes'
+				},
+				{
+					label: 'Permissions',
+					href: '/docs/advanced/platform/permissions'
+				},
+				{
+					label: 'Rate limits',
+					href: '/docs/advanced/platform/rate-limits'
+				},
+				{
+					label: 'Webhooks',
+					href: '/docs/advanced/platform/webhooks'
+				}
+			]
 		}
 	];
 </script>