fixed d3d7a461 from https://gitee.com/lixiaoying25/docs/pulls/18568

Description:guide documentation modifications
Feature or Bugfix:guide documentation modifications
Binary Source: No
Signed-off-by: NLixiaoying25 <lixiaoying25@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-rpc.md

@@ -6689,7 +6689,7 @@ registerDeathRecipient(recipient: DeathRecipient, flags: number): void
   }
   ```
 
-### addDeathRecippient<sup>(deprecated)</sup>
+### addDeathRecipient<sup>(deprecated)</sup>
 
 >从API version 9 开始不再维护，建议使用[registerDeathRecipient](#registerdeathrecipient9)类替代。
 
@@ -6744,7 +6744,7 @@ addDeathRecipient(recipient: DeathRecipient, flags: number): boolean
   globalThis.context.connectServiceExtensionAbility(want, connect);
   ```
 
-  上述onConnect回调函数中的proxy对象需要等ability异步连接成功后才会被赋值，然后才可调用proxy对象的addDeathRecippient接口方法新增死亡回调
+  上述onConnect回调函数中的proxy对象需要等ability异步连接成功后才会被赋值，然后才可调用proxy对象的addDeathRecipient接口方法新增死亡回调
 
   ```ts
   class MyDeathRecipient {
@@ -7146,7 +7146,7 @@ isAsync(): boolean;
 
   | 类型    | 说明                                     |
   | ------- | ---------------------------------------- |
-  | boolean | true：同步调用成功，false：异步调用成功。|
+  | boolean | true：异步调用成功，false：同步调用成功。|
 
 **示例：**