misc: add NOROUTE instruction back to template (#8379)

Co-authored-by: Sukka <isukkaw@gmail.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -9,6 +9,18 @@ Close #
 
 ## 完整路由地址 / Example for the proposed route(s)
 
+<!--
+请在 `routes` 区域填写以 / 开头的完整路由地址，否则你的 PR 将会被无条件关闭。
+如果路由包含在文档中列出可以完全穷举的参数（例如分类），请依次全部列出。
+
+Please include route starts with /, with all required and optional parameters. Fail to comply will result in your pull request being closed automatically.
+```routes
+/some/route
+/some/other/route
+如果你的 PR 与路由无关, 请在 route 区域 填写 `NOROUTE`，而不是直接删除 `routes` 区域。否则你的 PR 将会被无条件关闭。
+If your changes are not related to route, please fill in `routes` with `NOROUTE`. Fail to comply will result in your PR being closed.
+-->
+
 ```routes
 ```