message: docs: update the url of SSR
diff: @@ -178,4 +178,4 @@ const router = createRouter({
  })
  ```
  -Alternatively, if you are using a Node.js server, you can implement the fallback by using the router on the server side to match the incoming URL and respond with 404 if no route is matched. Check out the [Vue server side rendering documentation](https://ssr.vuejs.org/en/) for more information.
  +Alternatively, if you are using a Node.js server, you can implement the fallback by using the router on the server side to match the incoming URL and respond with 404 if no route is matched. Check out the [Vue server side rendering documentation](https://v3.vuejs.org/guide/ssr/introduction.html#what-is-server-side-rendering-ssr) for more information.
  