docs: add reactive-vscode badge

README.md

@@ -1,6 +1,7 @@
 # ext-name
 
 <a href="https://marketplace.visualstudio.com/items?itemName=antfu.ext-name" target="__blank"><img src="https://img.shields.io/visual-studio-marketplace/v/antfu.ext-name.svg?color=eee&amp;label=VS%20Code%20Marketplace&logo=visual-studio-code" alt="Visual Studio Marketplace Version" /></a>
+<a href="https://kermanx.github.io/reactive-vscode/" target="__blank"><img src="https://img.shields.io/badge/made_with-reactive--vscode-%23007ACC?style=flat&labelColor=%23229863"  alt="Made with reacrive-vscode" /></a>
 
 ## Sponsors