chore: update nextjs readme

examples/nextjs/readme.md

@@ -0,0 +1,38 @@
+# Next.js
+
+This example aims to test the `js-auth` library on Vercel and Netlify edges.
+
+
+## Vercel
+
+### Build settings
+
+- Framework Preset: `Next.js`
+- Build Command: `pnpm --prefix ../../ build && pnpm build`
+- Install Command: `pnpm --prefix ../../ install && pnpm install`
+- Root Directory: `examples/nextjs/`
+
+<img width="935" alt="Vercel - build and development settings" src="https://github.com/user-attachments/assets/d6f21a5c-7da6-4566-aa47-be6f8095c933">
+
+### Test link
+
+- https://commercelayer-js-auth-nextjs.vercel.app/
+- https://commercelayer-js-auth-nextjs.vercel.app/middleware
+- https://commercelayer-js-auth-nextjs.vercel.app/api/test
+
+## Netlify
+
+### Build settings
+
+- Runtime: `Next.js`
+- Base directory: `examples/nextjs/`
+- Build command: `pnpm --prefix ../../ install && pnpm --prefix ../../ build && pnpm install && pnpm build`
+- Publish directory: `examples/nextjs/.next`
+
+<img width="975" alt="Netlify - build and development settings" src="https://github.com/user-attachments/assets/fcf94547-13d1-4320-b9f8-3193069c408d">
+
+### Test link
+
+- https://commercelayer-js-auth-nextjs.netlify.app/
+- https://commercelayer-js-auth-nextjs.netlify.app/middleware
+- https://commercelayer-js-auth-nextjs.netlify.app/api/test