split docs into different groups and start landing page

src/components/How-To-Guides.jsx

@@ -0,0 +1,54 @@
+import { Button } from '@/components/Button'
+import { Heading } from '@/components/Heading'
+
+const howToGuides = [
+  {
+    href: '/docs/getting-started',
+    name: 'Getting Started',
+    description: 'Learn how to start using NetBird.',
+  },
+  {
+    href: '/docs/managing-your-network',
+    name: 'Managing your Network',
+    description: 'Learn everything you need to know about managing your network.',
+  },
+  {
+    href: '/docs/examples',
+    name: 'Examples',
+    description:
+      'Read some examples of how to use NetBird.',
+  },
+  {
+    href: '/docs/cli',
+    name: 'CLI',
+    description:
+      'Learn how to use the CLI of the NetBird client.',
+  },
+]
+
+export function HowToGuides() {
+  return (
+    <div className="my-16 xl:max-w-none">
+      <Heading level={2} id="guides">
+        How-To Guides
+      </Heading>
+      <div className="not-prose mt-4 grid grid-cols-1 gap-8 border-t border-zinc-900/5 pt-10 dark:border-white/5 sm:grid-cols-2 xl:grid-cols-4">
+        {howToGuides.map((guide) => (
+          <div key={guide.href}>
+            <h3 className="text-sm font-semibold text-zinc-900 dark:text-white">
+              {guide.name}
+            </h3>
+            <p className="mt-1 text-sm text-zinc-600 dark:text-zinc-400">
+              {guide.description}
+            </p>
+            <p className="mt-4">
+              <Button href={guide.href} variant="text" arrow="right">
+                Read more
+              </Button>
+            </p>
+          </div>
+        ))}
+      </div>
+    </div>
+  )
+}