diff --git a/.vuepress/config.js b/.vuepress/config.js
index 5f52739..30d939b 100644
--- a/.vuepress/config.js
+++ b/.vuepress/config.js
@@ -146,9 +146,9 @@ module.exports = {
           collapsable: false,
           children: [
             'install-docker-desktop',
-            ['install-k8s', '安装 Kubernetes 单Master节点'],
+            ['install-k8s', '安装Kubernetes单Master节点'],
             'install-kubernetes',
-            ['install-k8s-upgrade', '升级 Kubernetes 集群'],
+            ['install-k8s-upgrade', '升级Kubernetes集群'],
             'install-kubectl'
           ]
         },
diff --git a/.vuepress/theme/components/Sidebar.vue b/.vuepress/theme/components/Sidebar.vue
index 091bf9d..55c4eea 100644
--- a/.vuepress/theme/components/Sidebar.vue
+++ b/.vuepress/theme/components/Sidebar.vue
@@ -11,7 +11,7 @@
       </p>
       <div>
         <a target="_blank" :href="`http://demo.kuboard.cn/#/dashboard?k8sToken=${$site.themeConfig.kuboardToken}`">
-          <img :src="demo_img" style="width: 226px; height: 127px; border: 1px solid #d7dae2;"></img>
+          <img :src="demo_img" style="width: 226px; height: 127px; border: 1px solid #d7dae2;" alt="Kubernetes教程：Kuboard在线体验"></img>
         </a>
       </div>
       <p>
@@ -22,7 +22,7 @@
         <Qq/>
       </p>
       <p>
-        <img :src="kuboard_qq_img"/>
+        <img :src="kuboard_qq_img" alt="Kubernetes教程：QQ群在线答疑"/>
       </p>
     </div>
   </aside>
diff --git a/README.md b/README.md
index fa6b916..b64639c 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 ---
 home: false
 layout: HomePage
-title: Kuboard官网_Kubernetes_k8s_国内安装_部署_入门_免费中文教程_实践_微服务管理界面
+title: Kuboard官网_Kubernetes_k8s_安装_教程
 description: Kuboard官网首页_Kubernetes_k8s_国内安装_部署_入门_免费中文教程_实践_微服务管理界面
 actionText: 在线体验
 actionText2: 开始使用 →
diff --git a/docker/ClientComputedMixin.js b/docker/ClientComputedMixin.js
new file mode 100644
index 0000000..82b6448
--- /dev/null
+++ b/docker/ClientComputedMixin.js
@@ -0,0 +1,131 @@
+'use strict'
+
+/**
+ * Get page data via path (permalink).
+ *
+ * @param {array} pages
+ * @param {string} path
+ * @returns {object}
+ */
+
+function findPageForPath (pages, path) {
+  for (let i = 0; i < pages.length; i++) {
+    const page = pages[i]
+    if (page.path.toLowerCase() === path.toLowerCase()) {
+      return page
+    }
+  }
+  return {
+    path: '',
+    frontmatter: {}
+  }
+}
+
+/**
+ * Expose a function to get ClientComputedMixin constructor.
+ * Note that this file will run in both server and client side.
+ *
+ * @param {object} siteData
+ * @returns {ClientComputedMixin}
+ */
+
+module.exports = siteData => {
+  return class ClientComputedMixin {
+    setPage (page) {
+      this.__page = page
+    }
+
+    get $site () {
+      return siteData
+    }
+
+    get $themeConfig () {
+      return this.$site.themeConfig
+    }
+
+    get $frontmatter () {
+      return this.$page.frontmatter
+    }
+
+    get $localeConfig () {
+      const { locales = {}} = this.$site
+      let targetLang
+      let defaultLang
+      for (const path in locales) {
+        if (path === '/') {
+          defaultLang = locales[path]
+        } else if (this.$page.path.indexOf(path) === 0) {
+          targetLang = locales[path]
+        }
+      }
+      return targetLang || defaultLang || {}
+    }
+
+    get $siteTitle () {
+      return this.$localeConfig.title || this.$site.title || ''
+    }
+
+    get $title () {
+      const page = this.$page
+      const { metaTitle } = this.$page.frontmatter
+      if (typeof metaTitle === 'string') {
+        return metaTitle
+      }
+
+      const siteTitle = this.$siteTitle
+      const selfTitle = page.frontmatter.home ? null : (
+        page.frontmatter.title // explicit title
+        || page.title // inferred title
+      )
+      if (page.path.indexOf('/learning/') === 0) {
+        return 'Kubernetes教程_' + selfTitle
+      }
+      if (selfTitle === 'Kuboard官网_Kubernetes_k8s_安装_教程') {
+        return selfTitle
+      }
+      return siteTitle
+        ? selfTitle
+          ? (selfTitle + '_' + siteTitle)
+          : siteTitle
+        : selfTitle || 'VuePress'
+    }
+
+    get $description () {
+      // #565 hoist description from meta
+      const description = getMetaDescription(this.$page.frontmatter.meta)
+      if (description) {
+        return description
+      }
+      return this.$page.frontmatter.description || this.$localeConfig.description || this.$site.description || ''
+    }
+
+    get $lang () {
+      return this.$page.frontmatter.lang || this.$localeConfig.lang || 'en-US'
+    }
+
+    get $localePath () {
+      return this.$localeConfig.path || '/'
+    }
+
+    get $themeLocaleConfig () {
+      return (this.$site.themeConfig.locales || {})[this.$localePath] || {}
+    }
+
+    get $page () {
+      if (this.__page) {
+        return this.__page
+      }
+      return findPageForPath(
+        this.$site.pages,
+        this.$route.path
+      )
+    }
+  }
+}
+
+function getMetaDescription (meta) {
+  if (meta) {
+    const descriptionMeta = meta.filter(item => item.name === 'description')[0]
+    if (descriptionMeta) return descriptionMeta.content
+  }
+}
diff --git a/support/index.md b/support/index.md
index dcba18a..9594822 100644
--- a/support/index.md
+++ b/support/index.md
@@ -6,7 +6,7 @@ description: Kubernete教程_本文描述了如何获得Kuboard授权
 
 ## Kuboard 授权声明
 
-* 使用 Kuboard 是免费的，无论您是用于学习还是用于生产
+* 使用 Kuboard 是 <font color="red">免费</font> 的，无论您是用于学习还是用于生产
 * 将来会推出 Kuboard Plus，当前所有的功能，将来仍然免费。Kuboard Plus 侧重点：
   * 更完善的权限管理（当前只区分集群管理员权限和只读权限）
   * 审计日志
@@ -24,8 +24,9 @@ description: Kubernete教程_本文描述了如何获得Kuboard授权
 
 ### 微信即时答复
 
+* QQ群里的人数越来越多，热心的网友也越来越多，作者每天只能抽出一部分时间回答QQ群里的问题
 * 微信群聊里的问题，通常可立刻答复，并承诺2小时内给出解答
-* 可提供 TeamViewer 远程协助
+* 必要时可提供 TeamViewer 远程协助
 <div>
   <div style="margin-top: 10px;">
       <span>扫第一个二维码完成打赏，扫第二个进微信群聊。</span>