无障碍拓展文档修改格式

Signed-off-by: Njinqi6 <jinqi6@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-inner-application-accessibilityExtensionContext.md

@@ -610,7 +610,7 @@ try {
 
 **系统能力**：以下各项对应的系统能力均为SystemCapability.BarrierFree.Accessibility.Core
 
-## attributeNames
+### attributeNames
 
 attributeNames\<T extends keyof ElementAttributeValues>(): Promise\<Array\<T>>;
 
@@ -636,7 +636,7 @@ rootElement.attributeNames().then((data) => {
     console.log('failed to get attribute names, because ${JSON.stringify(err)}');
 });
 ```
-## attributeNames
+### attributeNames
 
 attributeNames\<T extends keyof ElementAttributeValues>(callback: AsyncCallback\<Array\<T>>): void;
 
@@ -664,7 +664,7 @@ rootElement.attributeNames((err, data) => {
     console.info('get attribute names success');
 });
 ```
-## AccessibilityElement.attributeValue
+### attributeValue
 
 attributeValue\<T extends keyof ElementAttributeValues>(attributeName: T): Promise\<ElementAttributeValues[T]>;
 
@@ -709,7 +709,7 @@ try {
     console.error('failed to get attribute value, because ${JSON.stringify(exception)}');
 }
 ```
-## AccessibilityElement.attributeValue
+### attributeValue
 
 attributeValue\<T extends keyof ElementAttributeValues>(attributeName: T, 
     callback: AsyncCallback\<ElementAttributeValues[T]>): void;
@@ -752,7 +752,7 @@ try {
     console.error('failed to get attribute value, because ${JSON.stringify(exception)}');
 }
 ```
-## actionNames
+### actionNames
 
 actionNames(): Promise\<Array\<string>>;
 
@@ -778,7 +778,7 @@ rootElement.actionNames().then((data) => {
     console.error('failed to get action names because ${JSON.stringify(err)}');
 });
 ```
-## actionNames
+### actionNames
 
 actionNames(callback: AsyncCallback\<Array\<string>>): void;
 
@@ -806,7 +806,7 @@ rootElement.actionNames((err, data) => {
     console.info('get action names success');
 });
 ```
-## performAction
+### performAction
 
 performAction(actionName: string, parameters?: object): Promise\<void>;
 
@@ -849,7 +849,7 @@ try {
     console.error('failed to perform action, because ${JSON.stringify(exception)}');
 }
 ```
-## performAction
+### performAction
 
 performAction(actionName: string, callback: AsyncCallback\<void>): void;
 
@@ -888,7 +888,7 @@ try {
     console.error('failed to perform action, because ${JSON.stringify(exception)}');
 }
 ```
-## performAction
+### performAction
 
 performAction(actionName: string, parameters: object, callback: AsyncCallback\<void>): void;
 
@@ -932,7 +932,7 @@ try {
     console.error('failed to perform action, because ${JSON.stringify(exception)}');
 }
 ```
-## findElement('content')
+### findElement('content')
 
 findElement(type: 'content', condition: string): Promise\<Array\<AccessibilityElement>>;
 
@@ -971,7 +971,7 @@ try {
     console.error('failed to find element, because ${JSON.stringify(exception)}');
 }
 ```
-## findElement('content')
+### findElement('content')
 
 findElement(type: 'content', condition: string, callback: AsyncCallback\<Array\<AccessibilityElement>>): void;
 
@@ -1007,7 +1007,7 @@ try {
     console.error('failed to find element, because ${JSON.stringify(exception)}');
 }
 ```
-## findElement('focusType')
+### findElement('focusType')
 
 findElement(type: 'focusType', condition: FocusType): Promise\<AccessibilityElement>;
 
@@ -1046,7 +1046,7 @@ try {
     console.error('failed to find element, because ${JSON.stringify(exception)}');
 }
 ```
-## findElement('focusType')
+### findElement('focusType')
 
 findElement(type: 'focusType', condition: FocusType, callback: AsyncCallback\<AccessibilityElement>): void;
 
@@ -1082,7 +1082,7 @@ try {
     console.error('failed to find element, because ${JSON.stringify(exception)}');
 }
 ```
-## findElement('focusDirection')
+### findElement('focusDirection')
 
 findElement(type: 'focusDirection', condition: FocusDirection): Promise\<AccessibilityElement>;
 
@@ -1121,7 +1121,7 @@ try {
     console.error('failed to find element, because ${JSON.stringify(exception)}');
 }
 ```
-## findElement('focusDirection')
+### findElement('focusDirection')
 
 findElement(type: 'focusDirection', condition: FocusDirection, callback: AsyncCallback\<AccessibilityElement>): void;