update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>

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

-# @ohos.application.DataShareExtensionAbility
+# @ohos.application.DataShareExtensionAbility (DataShare Extension Ability)
 
 The **DataShareExtensionAbility** module provides data share services based on the Extension ability.
 
@@ -22,7 +22,6 @@ import DataShareExtensionAbility from '@ohos.application.DataShareExtensionAbili
 The URIs are in the following format:
 
 **Scheme://authority/path** 
-
 - *Scheme*: scheme name, which has a fixed value of **datashare** for the **DataShare** module.
 - *authority*: [userinfo@]host[:port]
     - *userinfo*: login information, which can be left unspecified.
@@ -76,7 +75,8 @@ let rdbStore;
 export default class DataShareExtAbility extends DataShareExtensionAbility {
     onCreate(want, callback) {
         rdb.getRdbStore(this.context, {
-            name: DB_NAME
+            name: DB_NAME,
+            securityLevel: rdb.SecurityLevel.S1
         }, function (err, data) {
             console.log('getRdbStore done, data : ' + data);
             rdbStore = data;