修改单独使用链接

Signed-off-by: zouap <zouap@pcl.ac.cn>

templates/home.tmpl

@@ -137,7 +137,7 @@
                     {{.page_dev_yunlao_desc3}}<br>
                     {{.page_dev_yunlao_desc4}}<br>               
                     </p>
-                    <a class="ui blue basic button am-mt-20" href="{{AppSubUrl}}/user/login">{{.page_use}}</a> <a class="ui grey basic button am-mt-20" href="/zeizei/OpenI_Learning/issues">{{.page_dev_yunlao_apply}}</a>
+                    <a class="ui blue basic button am-mt-20" href="{{AppSubUrl}}/user/login">{{.page_use}}</a> <a class="ui grey basic button am-mt-20" href="mailto:aiforge@openi.org.cn">{{.page_dev_yunlao_apply}}</a>
                 </div>
             </div>
         </div>