update docs against 6482

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

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

-# EnterpriseAdminExtentionAbility
+# EnterpriseAdminExtensionAbility
 
-The **EnterpriseAdminExtentionAbility** module provides APIs for Extension abilities of enterprise administrators.
+The **EnterpriseAdminExtensionAbility** module provides Extension abilities for enterprise administrators.
+
+To have the capabilities provided by the module, for example, receiving the application activation or deactivation notification sent by the system, an enterprise administrator application must have an **EnterpriseAdminExtensionAbility** instance and override the APIs in it.
 
 > **NOTE**
 > 
 > 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
 
 ```ts
-import EnterpriseAdminExtentionAbility from '@ohos.EnterpriseAdminExtentionAbility'
+import EnterpriseAdminExtensionAbility from '@ohos.EnterpriseAdminExtensionAbility'
 ```
 
-## EnterpriseAdminExtentionAbility.onAdminEnabled
+## EnterpriseAdminExtensionAbility.onAdminEnabled
 
 onAdminEnabled(): void
 
@@ -22,14 +26,14 @@ Called when an enterprise administrator is enabled.
 
 **Example**
 
-  ```ts
+```ts
 export default class EnterpriseAdminAbility extends EnterpriseAdminExtensionAbility {
-    onAdminEnabled() {
-    }
+  onAdminEnabled() {
+  }
 };
-  ```
+```
 
-## EnterpriseAdminExtentionAbility.onAdminDisabled
+## EnterpriseAdminExtensionAbility.onAdminDisabled
 
 onAdminDisabled(): void
 
@@ -38,11 +42,10 @@ Called when an enterprise administrator is disabled.
 **System capability**: SystemCapability.Customization.EnterpriseDeviceManager
 
 **Example**
-    
 
-  ```ts
+```ts
 export default class EnterpriseAdminAbility extends EnterpriseAdminExtensionAbility {
-    onAdminDisabled() {
-    }
+  onAdminDisabled() {
+  }
 };
-  ```
+```