Update sandbox

dev/Dev.vue

@@ -1,9 +1,7 @@
 <template>
   <div id="app">
-    <sandbox hide-help>
-      <template slot-scope="config">
-        <v-select v-model="value" v-bind="config" />
-      </template>
+    <sandbox hide-help v-slot="config">
+      <v-select v-bind="config" />
     </sandbox>
   </div>
 </template>

docs/.vuepress/components/Sandbox.vue

@@ -179,7 +179,7 @@ const defaultConfig = () => ({
   closeOnSelect: true,
   disabled: false,
   selectOntab: false,
-  placeholder: 'placeholder',
+  placeholder: 'Select a Country...',
 });
 
 export default {