docs: add sample image

README.md

@@ -6,6 +6,8 @@ Quick Start Templates for **[Vite](https://vitejs.dev)** + **[Vue 3](https://vue
 
 [![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/jooy2/vutron/blob/master/LICENSE) ![Programming Language Usage](https://img.shields.io/github/languages/top/jooy2/vutron) ![github repo size](https://img.shields.io/github/repo-size/jooy2/vutron) ![Stars](https://img.shields.io/github/stars/jooy2/vutron?style=social) ![Commit Count](https://img.shields.io/github/commit-activity/y/jooy2/vutron) ![Line Count](https://img.shields.io/tokei/lines/github/jooy2/vutron) [![Followers](https://img.shields.io/github/followers/jooy2?style=social)](https://github.com/jooy2)
 
+![vutron-logo](vutron-sample.webp)
+
 **Vutron** is a preconfigured template for developing `Electron` cross-platform desktop apps. It uses `Vue 3` and allows you to build a fast development environment with little effort.
 
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