[Doc] update dashboard

example/app.wxss

@@ -1,5 +1,11 @@
 @import "dist/index.wxss";
 
+page {
+  color: #333;
+  -webkit-font-smoothing: antialiased;
+  font-family: 'PingFang SC', Helvetica, 'STHeiti STXihei', 'Microsoft YaHei', Tohoma, Arial, sans-serif;
+}
+
 .container {
   background: #F9F9F9;
   overflow: hidden;
@@ -7,6 +13,7 @@
   box-sizing: border-box;
   padding: 15px 0;
 }
+
 .container::before {
   position: fixed;
   top: 0;
@@ -17,6 +24,7 @@
   background-color: #e2e2e2;
   z-index: 5;
 }
+
 .doc-title {
   position: relative;
   padding: 15px 0;
@@ -25,6 +33,7 @@
   font-size: 25px;
   color: #666;
 }
+
 .doc-description {
   margin: 14px 0;
   padding: 0 15px;

example/pages/dashboard/index.wxml

@@ -1,6 +1,9 @@
 <view class="container">
-
-  <image class="logo" src="https://img.yzcdn.cn/public_files/2017/02/06/ee0ebced79a80457d77ce71c7d414c74.png"></image>
+  <view class="title">
+    <image class="logo" src="https://img.yzcdn.cn/public_files/2017/12/18/fd78cf6bb5d12e2a119d0576bedfd230.png" />
+    <view class="title-text">Vant</view>
+  </view>
+  <view class="desc">轻量、可靠的小程序 UI 组件库</view>
 
   <block wx:for="{{ list }}" wx:for-item="group" wx:key="title">
     <zan-panel title="{{ group.title }}">
@@ -15,5 +18,4 @@
       </zan-cell-group>
     </zan-panel>
   </block>
-  
 </view>

example/pages/dashboard/index.wxss

@@ -1,6 +1,34 @@
-.logo {
-  display: block;
-  margin: 40px auto;
-  width: 92px;
-  height: 82px;
+.container {
+  padding: 60px 0 20px;
+}
+
+.title {
+  margin: 0 0 15px;
+  text-align: center;
+  user-select: none;
+}
+
+.logo,
+.title-text {
+  display: inline-block;
+  vertical-align: middle;
+}
+
+.title-text {
+  font-size: 40px;
+  margin-left: 15px;
+  font-weight: 400;
+  font-family: "Dosis", "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;
+}
+
+.logo {
+  width: 36px;
+  height: 36px;
+}
+
+.desc {
+  font-size: 14px;
+  color: #455a64;
+  margin: 0 0 20px;
+  text-align: center;
 }