【OpenHarmony开源贡献者计划2022】update zh-cn/application-dev/quick-start/package-structure.md. 修改json代码缩进

Signed-off-by: Nleiliufc <leiliufc@isoftstone.com>

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

@@ -124,7 +124,7 @@ app实例：
         "target": 5,
         "releaseType": "Beta1"
     }
-  }
+}
 ```
 
 ### deviceConfig对象的内部结构
@@ -398,8 +398,7 @@ abilities示例：
         "label": "$media:example",
         "launchType": "standard",
         "orientation": "unspecified",
-        "permissions": [
-        ], 
+        "permissions": [], 
         "visible": true,
         "skills": [
             {