!5260 增加requestPermissions字段示例

Merge pull request !5260 from wangtiantian/cherry-pick-1654846127

zh-cn/application-dev/quick-start/stage-structure.md

@@ -503,6 +503,8 @@ requestPermissions示例 :
 
 ```json
 {
+    "name": "ohos.abilitydemo.permission.PROVIDER",
+    "reason": "$string:reason",
     "usedScene": {
         "abilities": [
             "AudioAbility",