update docs (8602)

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/apis/js-apis-accessibility-extension-context.md

@@ -9,10 +9,18 @@ You can use the APIs of this module to configure the concerned information, obta
 > The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 > The APIs of this module can be used only in the stage model.
 
-## Modules to Import
+## Usage
+
+Before using the **AccessibilityExtensionContext** module, you must define a child class that inherits from **AccessibilityExtensionAbility**.
 
 ```js
 import AccessibilityExtensionAbility from '@ohos.application.AccessibilityExtensionAbility'
+class MainAbility extends AccessibilityExtensionAbility {
+    onConnect(): void {
+        console.log("AxExtensionAbility onConnect");
+        let axContext = this.context;
+    }
+}
 ```
 
 ## FocusDirection
@@ -203,9 +211,9 @@ this.context.getWindows().then(windows => {
 })
 ```
 
-## AccessibilityExtensionContext.gestureInject
+## AccessibilityExtensionContext.injectGesture
 
-gestureInject(gesturePath: GesturePath, listener: Callback\<boolean>): Promise\<boolean
+injectGesture(gesturePath: GesturePath, listener: Callback\<boolean>): Promise\<boolean
 
 Injects a gesture.
 

en/application-dev/reference/apis/js-apis-accessibility.md

@@ -162,7 +162,7 @@ In the following API examples, you must first use the [accessibility.getCaptions
 
 on(type: 'enableChange', callback: Callback<boolean>): void;
 
-Enables listening for enabled status changes of captions configuration.
+Enables listening for the enabled status changes of captions configuration.
 
 - **Parameters**
 
@@ -204,7 +204,7 @@ Enables listening for captions style changes.
 
 off(type: 'enableChange', callback?: Callback<boolean>): void;
 
-Disables listening for enabled status changes of captions configuration.
+Disables listening for the enabled status changes of captions configuration.
 
 - **Parameters**
 
@@ -269,6 +269,8 @@ constructor(jsonObject)
 
 Implements a constructor.
 
+**System capability**: SystemCapability.BarrierFree.Accessibility.Core
+
 - **Parameters**
 
   | Name| Type| Mandatory| Description|
@@ -435,14 +437,16 @@ Obtains the captions configuration.
 
 on(type: 'accessibilityStateChange' | 'touchGuideStateChange', callback: Callback<boolean>): void
 
-Enables listening for the accessibility application or touch guide mode status changes. 
+Enables listening for the enabled status changes of the accessibility application or touch guide mode.
+
+ 
 
 - **Parameters**
 
   | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Type of the event to listen for.<br>- **'accessibilityStateChange'** means to listen for enabled status changes of the accessibility application.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Core<br>- **'touchGuideStateChange'** means to listen for enabled status changes of the touch guide mode.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Vision|
-  | callback | Callback&lt;boolean&gt; | Yes| Callback invoked when the enabled status of captions configuration changes.|
+  | type | string | Yes| Type of the event to listen for.<br>- **'accessibilityStateChange'** means to listen for the enabled status changes of the accessibility application.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Core<br>- **'touchGuideStateChange'** means to listen for the enabled status changes of the touch guide mode.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Vision|
+  | callback | Callback\<boolean> | Yes| Callback invoked when the enabled status of captions configuration changes.|
 
 - **Example**
 
@@ -456,13 +460,15 @@ Enables listening for the accessibility application or touch guide mode status c
 
 off(type: 'accessibilityStateChange ' | 'touchGuideStateChange', callback?: Callback&lt;boolean&gt;): void
 
-Disables listening for the accessibility application or touch guide mode status changes. 
+Disables listening for the enabled status changes of the accessibility application or touch guide mode.
+
+ 
 
 - **Parameters**
 
   | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
-  | type |  string | No| Type of the event to listen for.<br>- **'accessibilityStateChange'** means to listen for enabled status changes of the accessibility application.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Core<br>- **'touchGuideStateChange'** means to listen for enabled status changes of the touch guide mode.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Vision|
+  | type |  string | No| Type of the event to listen for.<br>- **'accessibilityStateChange'** means to listen for the enabled status changes of the accessibility application.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Core<br>- **'touchGuideStateChange'** means to listen for the enabled status changes of the touch guide mode.<br>**System capability**: SystemCapability.BarrierFree.Accessibility.Vision|
   | callback | Callback&lt;boolean&gt; | No| Callback invoked when the enabled status changes.|
 
 - **Example**