modified eslint script and fixed errors found (#2905)

Co-authored-by: Andrew Henry <akhenry@gmail.com>

example/simpleVuePlugin/HelloWorld.vue

@@ -1,14 +1,14 @@
 <template>
-  <div class="example">{{ msg }}</div>
+<div class="example">{{ msg }}</div>
 </template>
 
 <script>
 export default {
-  data () {
-    return {
-      msg: 'Hello world!'
+    data() {
+        return {
+            msg: 'Hello world!'
+        }
     }
-  }
 }
 </script>