docs: add website link and badge to README

Author: mewset

README.md

@@ -10,8 +10,9 @@
   [![Platform](https://img.shields.io/badge/platform-Linux%20%7C%20Windows%20%7C%20macOS-blue.svg)](#-installation)
   [![AUR](https://img.shields.io/aur/version/better-iptv-bin?logo=archlinux&label=AUR)](https://aur.archlinux.org/packages/better-iptv-bin)
   [![License: GPL v2](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](LICENSE)
+  [![Website](https://img.shields.io/badge/website-better--iptv.vercel.app-informational)](https://better-iptv.vercel.app)
 
-  [Features](#-features) • [Installation](#-installation) • [Quick Start](#-quick-start) • [FAQ](#-faq) • [Contributing](#-contributing)
+  [Website](https://better-iptv.vercel.app) • [Features](#-features) • [Installation](#-installation) • [Quick Start](#-quick-start) • [FAQ](#-faq) • [Contributing](#-contributing)
 </div>
 
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