feat: nextjs ssr auth tutorial

src/routes/docs/tutorials/nextjs-ssr-auth/step-1/+page.markdoc

@@ -0,0 +1,20 @@
+---
+layout: tutorial
+title: Server-side authentication with Next.js
+description: Add SSR authentication to your Next.js app with Appwrite
+step: 1
+difficulty: beginner
+readtime: 20
+framework: Next.js
+category: Auth
+---
+
+Appwrite takes away the stress of building and maintaining a backend. Appwrite helps implement authentication, databases, file storage, and respond to real-time events with **secure** APIs out of the box. 
+If you're a Next.js developer, the examples in this guide show you how Appwrite can help you add authentication to Next.js apps faster.
+
+# Before you start {% #before-you-start %}
+
+Even if you've never tried Appwrite, you will get an idea of what it'll feel like to build with Next.js and Appwrite.
+
+If you're inspired and wish to follow along, make sure you've followed [Start with Next.js](https://appwrite.io/docs/quick-starts/sveltekit) first.
+You can also clone the [demos-for-react](https://github.com/appwrite/demos-for-react/tree/main/nextjs) examples and follow along by looking at the code.