docs: update content

docs/src/demos/Guide/NodeViews/VueComponent/Component.vue

@@ -4,7 +4,7 @@
 
     <div class="content">
       <button @click="increase">
-        This button has been clicked {{ count }} times.
+        This button has been clicked {{ node.attrs.count }} times.
       </button>
     </div>
   </node-view-wrapper>
@@ -18,15 +18,23 @@ export default {
     NodeViewWrapper,
   },
 
-  data() {
-    return {
-      count: 0,
-    }
+  props: {
+    updateAttributes: {
+      type: Function,
+      required: true,
+    },
+
+    node: {
+      type: Object,
+      required: true,
+    },
   },
 
   methods: {
     increase() {
-      this.count += 1
+      this.updateAttributes({
+        count: this.node.attrs.count + 1,
+      })
     },
   },
 }