docs: add Deploy to PandaStack button

Author: ajaysourcedigital

README.md

@@ -271,6 +271,7 @@ Clone this repository on your own GitHub account and deploy it to Netlify:
 Clone this repository on your own GitHub account and deploy to Vercel:
 
 [![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Farthelokyo%2Fastrowind)
+[![Deploy to PandaStack](https://dashboard.pandastack.io/deploy-button.svg)](https://dashboard.pandastack.io/deploy?repo=arthelokyo/astrowind&type=static&buildCmd=npm+run+build&outputDir=dist)
 
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