[Doc] add demo pages (#237)

* [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

packages/cell/index.vue

@@ -1,15 +1,12 @@
 <template>
   <a :class="['van-cell', 'van-hairline', { 'van-cell--required': required }]" :href="url" @click="$emit('click')">
-    <div
-      class="van-cell__title"
-      v-if="$slots.title || title"
-    >
+    <div class="van-cell__title" v-if="$slots.title || title">
       <slot name="icon">
-        <i v-if="icon" class="van-icon" :class="'van-icon-' + icon"></i>
+        <i v-if="icon" class="van-icon" :class="'van-icon-' + icon" />
       </slot>
       <slot name="title">
-        <span class="van-cell__text" v-text="title"></span>
-        <span class="van-cell__label" v-if="label" v-text="label"></span>
+        <span class="van-cell__text" v-text="title" />
+        <span class="van-cell__label" v-if="label" v-text="label" />
       </slot>
     </div>
     <div
@@ -21,20 +18,26 @@
       }"
     >
       <slot>
-        <span v-text="value"></span>
+        <span v-text="value" />
       </slot>
     </div>
     <slot name="right-icon">
-      <i class="van-cell__right-icon van-icon van-icon-arrow" v-if="isLink"></i>
+      <van-icon name="arrow" class="van-cell__right-icon" v-if="isLink" />
     </slot>
-    <slot name="extra"></slot>
+    <slot name="extra" />
   </a>
 </template>
 
 <script>
+import Icon from '../icon';
+
 export default {
   name: 'van-cell',
 
+  components: {
+    [Icon.name]: Icon
+  },
+
   props: {
     icon: String,
     title: String,

packages/search/index.vue

@@ -104,7 +104,7 @@ export default {
      */
     handleSearch(e) {
       e.preventDefault();
-      this.$emit('search');
+      this.$emit('search', this.value);
       return false;
     },
 

packages/vant-css/src/card.css

@@ -4,6 +4,7 @@
 .van-card {
   color: $text-color;
   height: 100px;
+  font-size: 16px;
   background: #fafafa;
   position: relative;
   box-sizing: border-box;

packages/vant-css/src/cell.css

@@ -24,6 +24,7 @@
     display: table-cell;
 
     .van-icon {
+      font-size: 16px;
       margin-right: 5px;
       vertical-align: middle;
     }