perf:format code&&fix typo

src/views/components-demo/markdown.vue

@@ -3,7 +3,7 @@
     <code>Markdown 我们这里选用了
       <a href="https://github.com/sparksuite/simplemde-markdown-editor" target="_blank">simplemde-markdown-editor</a> ，简单的用vue封装了一下
       <a target="_blank" href="https://segmentfault.com/a/1190000009762198#articleHeader14">
-      相关文章 </a>
+        相关文章 </a>
     </code>
     <div class="editor-container">
       <markdown-editor id="contentEditor" ref="contentEditor" v-model="content" :height="300" :zIndex="20"></markdown-editor>
@@ -16,26 +16,25 @@
 <script>
 import MarkdownEditor from '@/components/MarkdownEditor'
 
+const content = `
+**this is test**
+
+* vue
+* element
+* webpack
+
+## Simplemde
+`
+
 export default {
   name: 'markdown-demo',
   components: { MarkdownEditor },
   data() {
     return {
-      content: '## Simplemde',
+      content: content,
       html: ''
     }
   },
-  computed: {
-    cachedViews() {
-      return this.$store.state.app.cachedViews
-    }
-  },
-  // deactivated() {
-  //   console.log(this.cachedViews.indexOf(this.$route.name))
-  //   if (this.cachedViews.indexOf(this.$route.name) < 0) {
-  //     this.$destroy()
-  //   }
-  // },
   methods: {
     markdown2Html() {
       import('showdown').then(showdown => {