diff --git a/docs/api/adapters/mirai.md b/docs/api/adapters/mirai.md
index b627f72d..c5295cdc 100644
--- a/docs/api/adapters/mirai.md
+++ b/docs/api/adapters/mirai.md
@@ -1070,20 +1070,6 @@ mirai-api-http 协议事件，字段与 mirai-api-http 一致。各事件字段
 > * `MEMBER`: 普通群成员
 
 
-## _class_ `MessageChain`
-
-基类：[`nonebot.adapters.Message`](README.md#nonebot.adapters.Message)
-
-Mirai 协议 Messaqge 适配
-
-由于Mirai协议的Message实现较为特殊, 故使用MessageChain命名
-
-
-### `export()`
-
-导出为可以被正常json序列化的数组
-
-
 ## _class_ `MessageEvent`
 
 基类：`nonebot.adapters.mirai.event.base.Event`
diff --git a/docs/guide/creating-a-matcher.md b/docs/guide/creating-a-matcher.md
index ac74f6c1..83debe13 100644
--- a/docs/guide/creating-a-matcher.md
+++ b/docs/guide/creating-a-matcher.md
@@ -123,7 +123,7 @@ async def async_checker(bot: Bot, event: Event, state: T_State) -> bool:
 def sync_checker(bot: Bot, event: Event, state: T_State) -> bool:
     return True
 
-def check(arg1, args2):
+def check(arg1, arg2):
 
     async def _checker(bot: Bot, event: Event, state: T_State) -> bool:
         return bool(arg1 + arg2)