update doc

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

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

 # Settings
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE:**
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
 > The initial APIs of this module are supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.
 
 
@@ -14,10 +14,6 @@ import settings from '@ohos.settings';
 ```
 
 
-## Required Permissions
-
-None
-
 
 ## settings.getUriSync
 
@@ -25,10 +21,12 @@ getUriSync(name: string): string
 
 Obtains the URI of a data item.
 
+**System capability**: SystemCapability.Applictaions.settings.Core
+
 - Parameters
   | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
-  | name | string | Yes| Name of the target data item. Data items can be classified as follows:<br><ul><li>Existing data items in the database, for example:<br></li><ul><li>Brightness: 'settings.screen.brightness' <br> </li> <li>Time format: 'settings.time.format' <br> </li></ul> <li>Custom data items</li></ul>|
+  | name | string | Yes| Name of the target data item. Data items can be classified as follows:<br> <ul><li>Existing data items in the database, for example:<br></li> <ul><li>Brightness: 'settings.screen.brightness'<br> </li>  <li>Time format: 'settings.time.format'<br> </li></ul> <li>Custom data items</li></ul>|
 
 - Return value
   | Type| Description|
@@ -48,11 +46,13 @@ getValueSync(dataAbilityHelper: DataAbilityHelper, name: string, defValue: strin
 
 Obtains the value of a data item.
 
+**System capability**: SystemCapability.Applictaions.settings.Core
+
 - Parameters
   | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
   | dataAbilityHelper | [DataAbilityHelper](js-apis-dataAbilityHelper.md) | Yes| **DataAbilityHelper** class.|
-  | name | string | Yes| Name of the target data item. Data items can be classified as follows:<br><ul><li>Existing data items in the database, for example:<br></li><ul><li>Brightness: 'settings.screen.brightness' <br> </li> <li>Time format: 'settings.time.format' <br> </li></ul> <li>Custom data items</li></ul>|
+  | name | string | Yes| Name of the target data item. Data items can be classified as follows:<br> <ul><li>Existing data items in the database, for example:<br></li> <ul><li>Brightness: 'settings.screen.brightness'<br> </li>  <li>Time format: 'settings.time.format'<br> </li></ul> <li>Custom data items</li></ul>|
   | defValue | string | Yes| Default value This parameter is user-defined. If it is not found in the database, the default value is returned.|
 
 - Return value
@@ -79,13 +79,15 @@ setValueSync(dataAbilityHelper: DataAbilityHelper, name: string, value: string):
 Sets the value of a data item.
 If the specified data item exists in the database, the **setValueSync** method updates the value of the data item. If the data item does not exist in the database, the **setValueSync** method inserts the data item into the database.
 
-To use this method, you must have the **ohos.permission.WRITE_SYSTEM_SETTING** permission.
+**Required permissions**: ohos.permission.WRITE_SYSTEM_SETTING
+
+**System capability**: SystemCapability.Applictaions.settings.Core
 
 - Parameters
   | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
   | dataAbilityHelper | [DataAbilityHelper](js-apis-dataAbilityHelper.md) | Yes| **DataAbilityHelper** class.|
-  | name | string | Yes| Name of the target data item. Data items can be classified as follows:<br><ul><li>Existing data items in the database, for example:<br></li><ul><li>Brightness: 'settings.screen.brightness' <br> </li> <li>Time format: 'settings.time.format' <br> </li></ul> <li>Custom data items</li></ul>|
+  | name | string | Yes| Name of the target data item. Data items can be classified as follows:<br> <ul><li>Existing data items in the database, for example:<br></li> <ul><li>Brightness: 'settings.screen.brightness'<br> </li>  <li>Time format: 'settings.time.format'<br> </li></ul> <li>Custom data items</li></ul>|
   | value | string | Yes| Value of the data item.|
 
 - Return value