fix typo

src/views/example/tab/index.vue

 <template>
   <div class="tab-container">
-    <el-tag type="primary">create times ：{{createdTimes}}</el-tag>
+    <el-tag type="primary">mounted times ：{{createdTimes}}</el-tag>
     <el-tabs style='margin-top:15px;' v-model="activeName" type="border-card">
       <el-tab-pane v-for="item in tabMapOptions" :label="item.label" :key='item.key' :name="item.key">
         <keep-alive>