feat: publicize doc implemetation

one/docs/demo/icon/default.vue

@@ -0,0 +1,68 @@
+<template>
+<article>
+  <div
+    v-for="name in names"
+    :key="name"
+    class="item"
+  >
+    <div class="icon">
+      <veui-icon :name="name"/>
+    </div>
+    <div class="name">
+      {{ name }}
+    </div>
+  </div>
+</article>
+</template>
+
+<script>
+import { Icon } from 'veui'
+import 'veui-theme-dls-icons'
+
+export default {
+  components: {
+    'veui-icon': Icon
+  },
+  data () {
+    return {
+      names: Object.keys(Icon.icons).sort()
+    }
+  }
+}
+</script>
+
+<style lang="less" scoped docs>
+article {
+  overflow: hidden;
+}
+
+.item {
+  @grid-size: 128px;
+  float: left;
+  width: @grid-size;
+  height: calc(@grid-size + 3em);
+  text-align: center;
+  margin: 1em 2em;
+
+  .icon {
+    width: @grid-size;
+    height: @grid-size;
+    border: 1px solid transparent;
+    font-size: 1.5em;
+    line-height: @grid-size;
+    border-radius: 4px;
+    transition: border-color .2s;
+
+    &:hover {
+      border-color: #ccc;
+    }
+  }
+
+  .name {
+    margin-top: 0.6em;
+    color: #333;
+    font-size: 0.8em;
+    white-space: nowrap;
+  }
+}
+</style>