[Doc] add goods demo (#242)

* [bugfix] Checkbox border render error in weixin browser

* [bugfix] TreeSelect dependency path error

* [bugfix] Swipe should clear autoplay timer when destroyed

* [bugfix] Optimize component dependency analyze when build style entry

* merge

* update yarn.lock

* update README.md

* update README.md

* update README.md

* update README.md

* update README.md

* [Doc] add more badges in README.md

* update README.md

* [bugfix] Address & Contact list style

* fix: contact test cases

* [bugfix] popup style missing when build style entry

* [bugfix] Search: onSearch event arguments missing

* [Doc] add demo pages

* update zan-doc@0.3.7

* fix: build entry error

* [Doc] add goods demo

* [bugfix] button primary background color

docs/examples-docs/en-US/cell.md

@@ -67,7 +67,7 @@ Vue.component(CellGroup.name, CellGroup);
 :::demo Advanced Usage
 ```html
 <van-cell-group>
-  <van-cell value="Text" icon="home" is-link>
+  <van-cell value="Text" icon="shop" is-link>
     <template slot="title">
       <span class="van-cell-text">Title</span>
       <van-tag type="danger">Tag</van-tag>

docs/examples-docs/en-US/tree-select.md

@@ -139,7 +139,6 @@ export default {
 | itemclick | triggered when item is selected | data: selected item |
 
 ### Data Structure
-
 `items` should be an array contains specified tree objects.
 
 In every tree object, `text` property defines the name, `id` stands for the unique key while the `children` contains sub-tree objects.

docs/examples-docs/zh-CN/cell.md

@@ -87,7 +87,7 @@ Vue.component(CellGroup.name, CellGroup);
 :::demo 高级用法
 ```html
 <van-cell-group>
-  <van-cell value="进入店铺" icon="home" is-link>
+  <van-cell value="进入店铺" icon="shop" is-link>
     <template slot="title">
       <span class="van-cell-text">起码运动馆</span>
       <van-tag type="danger">官方</van-tag>

docs/src/components/demo.vue

@@ -21,15 +21,20 @@ export default {
     return {
       currentDemo: 0,
       demos: [{
+        title: '商品详情',
+        preview: 'https://img.yzcdn.cn/public_files/2017/10/24/7070a8d1d6504b864c605114d32f2aae.png',
+        url: 'https://chenjiahan.github.io/vant-demo/#/goods',
+        source: 'https://github.com/chenjiahan/vant-demo/tree/master/src/view/goods/index.vue'
+      }, {
         title: '会员中心',
         preview: 'https://img.yzcdn.cn/public_files/2017/10/23/e1d70757e3ab88d39a360b704be8f43f.png',
         url: 'https://chenjiahan.github.io/vant-demo/#/user',
-        source: 'https://github.com/chenjiahan/vant-demo/tree/master/src/view/user'
+        source: 'https://github.com/chenjiahan/vant-demo/tree/master/src/view/user/index.vue'
       }, {
         title: '购物车',
         preview: 'https://img.yzcdn.cn/public_files/2017/10/24/06b8b5ed3692314d434db7f6854dcdbe.png',
         url: 'https://chenjiahan.github.io/vant-demo/#/cart',
-        source: 'https://github.com/chenjiahan/vant-demo/tree/master/src/view/cart'
+        source: 'https://github.com/chenjiahan/vant-demo/tree/master/src/view/cart/index.vue'
       }]
     };
   },
@@ -79,9 +84,9 @@ export default {
     }
 
     a {
-      display: block;
       font-size: 12px;
       margin: 4px 0 7px;
+      display: inline-block;
     }
 
     &--active {