docs: add stackblitz example to readme

Author: hunterliu1003

README.md

@@ -19,6 +19,11 @@ The most powerful yet most light-weight modal library for Vue 3.
   </a>
 </p>
 
+## Playground
+
+- [Stackblitz for Vue 3](https://stackblitz.com/github/vue-final/vue-final-modal/tree/master/examples/vue3)
+- [Stackblitz for Nuxt 3](https://stackblitz.com/github/vue-final/vue-final-modal/tree/master/examples/nuxt3)
+
 ## [Documentation](https://v4.vue-final-modal.org/)
 
 Checkout [Migration guide from v3](https://v4.vue-final-modal.org/get-started/guide/migration-guide).

docs/content/2.get-started/1.guide/2.setup.md

@@ -6,6 +6,15 @@ How to start with Vue Final Modal, by creating a fresh new project or adding it
 ❗️ If you came from vue-final-modal 3.x, please check the [migration guide](/get-started/guide/migration-guide).
 ::
 
+## Play online
+
+You can start playing with Vue Final Modal in your browser using our online sandboxes:
+
+:button-link[Play in Vue 3 on StackBlitz]{icon="IconStackBlitz" href="https://stackblitz.com/github/vue-final/vue-final-modal/tree/master/examples/vue3" blank style="margin-right: var(--space-4);"}
+
+:button-link[Play in Nuxt 3 on StackBlitz]{icon="IconStackBlitz" href="https://stackblitz.com/github/vue-final/vue-final-modal/tree/master/examples/nuxt3" blank style="margin-right: var(--space-4);"}
+
+
 ## Installation
 
 ::code-group

packages/vue-final-modal/README.md

@@ -19,6 +19,11 @@ The most powerful yet most light-weight modal library for Vue 3.
   </a>
 </p>
 
+## Playground
+
+- [Stackblitz for Vue 3](https://stackblitz.com/github/vue-final/vue-final-modal/tree/master/examples/vue3)
+- [Stackblitz for Nuxt 3](https://stackblitz.com/github/vue-final/vue-final-modal/tree/master/examples/nuxt3)
+
 ## [Documentation](https://v4.vue-final-modal.org/)
 
 Checkout [Migration guide from v3](https://v4.vue-final-modal.org/get-started/migration/from-v3).