fix(uploader): 直接调起摄像头bug

src/packages/__VUE/uploader/doc.taro.md

@@ -35,7 +35,7 @@ app.use(Uploader);
 ### 直接调起摄像头 camera
     
 ``` html
-<nut-uploader url="http://服务器地址" source-type="camera" ></nut-uploader>
+<nut-uploader url="http://服务器地址" :source-type="['camera']" ></nut-uploader>
 ```
 ### 限制上传数量5个
 

src/sites/mobile-taro/vue/src/dentry/pages/uploader/index.vue

@@ -13,7 +13,7 @@
       environment 使用后置摄像头(仅H5纯浏览器)
       -->
     <h2>直接调起摄像头 camera </h2>
-    <nut-uploader source-type="camera"></nut-uploader>
+    <nut-uploader :source-type="['camera']"></nut-uploader>
     <h2>上传状态</h2>
     <nut-uploader :url="uploadUrl" @delete="onDelete"></nut-uploader>
     <h2>限制上传数量5个</h2>