docs: update readme

docs/index.md

@@ -16,6 +16,18 @@ hero:
       text: View on GitHub
       link: https://github.com/uiv-lib/uiv
 
-
+features:
+- icon: <svg xmlns="http://www.w3.org/2000/svg" width="32" height="32"><path fill="#41b883" d="M24.4 3.925H30l-14 24.15L2 3.925h10.71l3.29 5.6 3.22-5.6Z"/><path fill="#41b883" d="m2 3.925 14 24.15 14-24.15h-5.6L16 18.415 7.53 3.925Z"/><path fill="#35495e" d="M7.53 3.925 16 18.485l8.4-14.56h-5.18L16 9.525l-3.29-5.6Z"/></svg>
+  title: Vue 2&3 supported.
+  details: Easy to use and upgrade.
+- icon: ✨
+  title: Lightweight
+  details: All components ~20KB Gziped, no extra CSS file. Individually import is also supported.
+- icon: ⚡
+  title: Clean and elegant
+  details: We do not wrap everything, just those you really needed.
+- icon: 🚀
+  title: Ready for App
+  details: Not only Bootstrap components, but also something not included in Bootstrap, like Notification, Date-Picker...
 ---