docs: add sample conf for azure static web apps deployment

[jeremy0519]

add sample configuration for azure static web apps deployment in html5 history mode.

[netlify]

✅ Deploy Preview for vue-router ready!

Name	Link
🔨 Latest commit	f9cb07b
🔍 Latest deploy log	https://app.netlify.com/sites/vue-router/deploys/66f58a50b903f10008c2dc45
😎 Deploy Preview	https://deploy-preview-2371--vue-router.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 96 (🟢 up 9 from production) Accessibility: 100 (no change from production) Best Practices: 100 (no change from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[jeremy0519]

Duplicate of #1406