add download link

themes/project/layouts/download/list.html

@@ -18,7 +18,7 @@
                                 <h5><a href="https://gitee.com/openeuler/community-issue">https://gitee.com/openeuler/community-issue</a></h5>
                             </div>
                             <div class="downloadButtonBlock">
-                                <a href="https://"><button type="button" class="btn btn-primary btn-lg btn-download" >{{ i18n "download_iso_button"}}</button></a>
+                                <a href="https://openeuler.obs.cn-south-1.myhuaweicloud.com/release/openEuler-1.0-aarch64-dvd.iso><button type="button" class="btn btn-primary btn-lg btn-download" >{{ i18n "download_iso_button"}}</button></a>
                             </div>
                         </div>