update sketch template link

docs/resource/download.en-US.md

@@ -13,7 +13,7 @@ Please find below some of the design resources and tools about Ant Design that w
     <span class="resource-card-description">A powerful Axure library of Ant Design</span>
   </span>
 </a>
-<a target="_blank" href="https://github.com/ant-design/ant-design/releases/download/resource/Ant.Design.Template.v1.1.sketch" class="resource-card">
+<a target="_blank" href="https://github.com/ant-design/ant-design/releases/download/resource/Ant.Design.Template.sketch" class="resource-card">
   <img src="https://www.sketchapp.com/images/app-icon@2x.png">
   <span class="resource-card-content">
     <span class="resource-card-title">Sketch Template</span>

docs/resource/download.zh-CN.md

@@ -13,7 +13,7 @@ title: 资源下载
     <span class="resource-card-description">一套强大的 Ant Design 的 Axure 部件库</span>
   </span>
 </a>
-<a target="_blank" href="https://github.com/ant-design/ant-design/releases/download/resource/Ant.Design.Template.v1.1.sketch" class="resource-card">
+<a target="_blank" href="https://github.com/ant-design/ant-design/releases/download/resource/Ant.Design.Template.sketch" class="resource-card">
   <img src="https://www.sketchapp.com/images/app-icon@2x.png">
   <span class="resource-card-content">
     <span class="resource-card-title">Sketch Template</span>