update docs

Signed-off-by: Nshawn_he <shawn.he@huawei.com>

en/application-dev/reference/apis/js-apis-system-configuration.md

 # Application Configuration
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note：**
-> - The APIs of this module are no longer maintained since API version 7. It is recommended that you use [`@ohos.i18n`](js-apis-i18n.md) and [`@ohos.intl`](js-apis-intl.md) instead.
+> **NOTE**<br>
+> - The APIs of this module are no longer maintained since API version 7. You are advised to use [`@ohos.i18n`](js-apis-i18n.md) and [`@ohos.intl`](js-apis-intl.md) instead.
 >
 > 
 > - The initial APIs of this module are supported since API version 3. Newly added APIs will be marked with a superscript to indicate their earliest API version.
@@ -17,29 +17,37 @@ import configuration from '@system.configuration';
 
 ## configuration.getLocale
 
-getLocale(): &lt;LocaleResponse&gt;
+static getLocale(): LocaleResponse
 
 Obtains the current locale of the application, which is the same as the system locale.
 
 **System capability**: SystemCapability.ArkUI.ArkUI.Lite
 
-**Return values**
-**Table 1** LocaleResponse
-
-| Name | Type | Description |
-| -------- | -------- | -------- |
-| language | string | Current&nbsp;language&nbsp;of&nbsp;the&nbsp;application,&nbsp;for&nbsp;example,&nbsp;**zh**. |
-| countryOrRegion | string | Country&nbsp;or&nbsp;region,&nbsp;for&nbsp;example,&nbsp;**CN**. |
-| dir | string | Text&nbsp;layout&nbsp;direction.&nbsp;Available&nbsp;values&nbsp;are&nbsp;as&nbsp;follows:<br/>-&nbsp;**ltr**:&nbsp;The&nbsp;text&nbsp;direction&nbsp;is&nbsp;from&nbsp;left&nbsp;to&nbsp;right.<br/>-&nbsp;**rtl**:&nbsp;The&nbsp;text&nbsp;direction&nbsp;is&nbsp;from&nbsp;right&nbsp;to&nbsp;left. |
-| unicodeSetting<sup>5+</sup> | string | Unicode&nbsp;key&nbsp;set&nbsp;determined&nbsp;by&nbsp;the&nbsp;locale.<br/>For&nbsp;example,&nbsp;**{"nu":"arab"}**&nbsp;indicates&nbsp;that&nbsp;the&nbsp;current&nbsp;locale&nbsp;uses&nbsp;Arabic&nbsp;numerals.<br/>If&nbsp;the&nbsp;current&nbsp;locale&nbsp;does&nbsp;not&nbsp;have&nbsp;a&nbsp;specific&nbsp;key&nbsp;set,&nbsp;an&nbsp;empty&nbsp;set&nbsp;is&nbsp;returned. |
+**Return value**
+| Type           | Description           |
+| -------------- | ------------- |
+| LocaleResponse | Current locale information.|
 
 **Example**
-
-```
-export default {    
+  ```
+  export default {    
     getLocale() {        
       const localeInfo = configuration.getLocale();        
       console.info(localeInfo.language);    
     }
-}
-```
\ No newline at end of file
+  }
+  ```
+
+
+## LocaleResponse
+
+Defines attributes of the current locale.
+
+**System capability**: SystemCapability.ArkUI.ArkUI.Lite
+
+| Name  | Type  | Readable  | Writable  | Description                                      |
+| ---- | ------ | ---- | ---- | ---------------------------------------- |
+| language | string | Yes   | No   | Language, for example, **zh**.|
+| countryOrRegion | string | Yes   | No   | Country or region, for example, **CN** or **US**.|
+| dir | string | Yes   | No   | Text layout direction. The value can be:<br>- **ltr**: from left to right<br>- **rtl**: from right to left|
+| unicodeSetting<sup>5+</sup> | string | Yes   | No   | Unicode language key set determined by the locale. If current locale does not have a specific key set, an empty set is returned.<br>For example, **{"nu":"arab"}** indicates that current locale uses Arabic numerals.|