docs:fix usage errors

docs/guide/command-execute.md

@@ -477,7 +477,7 @@ instance.command.executePageMode(pageMode)
 
 用法：
 ```javascript
-instance.command.executePageMode()
+instance.command.executePageScaleRecovery()
 ```
 
 ## executePageScaleMinus

docs/guide/command-get.md

@@ -29,7 +29,7 @@ const {
 
 用法：
 ```javascript
-const base64StringList = instance.command.getValue()
+const base64StringList = await instance.command.getImage()
 ```
 
 ## getWordCount

docs/guide/listener.md

@@ -70,7 +70,7 @@ instance.listener.controlChange = (payload: IControl | null)=>{}
 
 用法：
 ```javascript
-instance.listener.controlChange = (payload: PageMode)=>{}
+instance.listener.pageModeChange = (payload: PageMode)=>{}
 ```
 
 ## saved