📝 Docs: 更新最佳实践的 Alconna 部分 (#2656)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

website/docs/best-practice/alconna/README.mdx

@@ -102,17 +102,16 @@ async def got_location(location: str = ArgPlainText()):
 
 </details>
 
-```python {5-10,14-16,18-19}
+```python {5-9,13-15,17-18}
 from nonebot.rule import to_me
 from arclet.alconna import Alconna, Args
 from nonebot_plugin_alconna import Match, on_alconna
 
 weather = on_alconna(
     Alconna("天气", Args["location?", str]),
+    aliases={"weather", "天气预报"},
     rule=to_me(),
 )
-weather.shortcut("weather", {"command": "天气"})
-weather.shortcut("天气预报", {"command": "天气"})
 
 
 @weather.handle()
@@ -133,7 +132,7 @@ async def got_location(location: str):
 或阅读 [Alconna 基本介绍](./command.md) 一节。
 
 关于更多 `on_alconna` 的使用方法，可参考 [插件文档](https://github.com/nonebot/plugin-alconna/blob/master/docs.md)，
-或阅读 [响应规则的使用](./matcher.md) 一节。
+或阅读 [响应规则的使用](./matcher.mdx) 一节。
 
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