Add a Next.js + Tailwind CSS Starter Template

Description:
Create a folder named nextjs-template with a minimal starter project using:

    Next.js (pages router or app router)

    Tailwind CSS

    Prettier config (optional)

Include a README.md explaining how to run it.

📁 Folder: /nextjs-template
📌 Stack: Frontend
🛠 Tools: Next.js, Tailwind, npm/yarn

