Add a demo to index.md

Author: skirtles-code

docs/index.md

@@ -6,7 +6,7 @@ titleTemplate: VNode utilities for Vue
 
 hero:
   name: vue-vnode-utils
-  text: Helper functions for working with Vue VNodes
+  text: Helper functions for working with Vue 3 VNodes
   tagline: Smoothing over the edge cases for working with the VNodes returned by a slot
   actions:
     - theme: brand
@@ -15,6 +15,9 @@ hero:
     - theme: alt
       text: View on GitHub
       link: https://github.com/skirtles-code/vue-vnode-utils
+    - theme: alt
+      text: See a demo
+      link: https://sfc.vuejs.org/#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
 
 features:
   - title: 🧩 Fragment-aware iteration