docs: update uploader docs

Change-Id: I8f681439132171f64b847620760c90e74c062158

one/docs/demo/uploader/media.vue

@@ -0,0 +1,57 @@
+<template>
+<article>
+  <section>
+    <h4>Normal size</h4>
+    <veui-uploader
+      v-model="media"
+      type="media"
+      action="https://app.fakejson.com/q/ELymQ7xh?token=AWFkjMICPSAB_bO_z-Lnog"
+    >
+      <template #desc>
+        Normal size
+      </template>
+    </veui-uploader>
+  </section>
+  <section>
+    <h4>Small size</h4>
+    <veui-uploader
+      v-model="media2"
+      type="media"
+      action="https://app.fakejson.com/q/ELymQ7xh?token=AWFkjMICPSAB_bO_z-Lnog"
+      ui="s"
+    >
+      <template #desc>
+        Small size
+      </template>
+    </veui-uploader>
+  </section>
+</article>
+</template>
+
+<script>
+import { Uploader } from 'veui'
+import { cloneDeep } from 'lodash'
+
+export default {
+  components: {
+    'veui-uploader': Uploader
+  },
+  data () {
+    let media = [
+      {
+        type: 'image',
+        src: '/images/development/uploader/demo-image1.jpg'
+      },
+      {
+        type: 'video',
+        src: 'https://nadvideo2.baidu.com/5dafd8544f4f53b27a5f59b0ab780403_1920_1080.mp4',
+        poster: 'https://feed-image.baidu.com/0/pic/4dced79d185a16e228652b136f653dcc.jpg'
+      }
+    ]
+    return {
+      media,
+      media2: cloneDeep(media)
+    }
+  }
+}
+</script>