request示例代码自动化检测问题修复

Signed-off-by: Nanyueling <anyueling@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-request.md

@@ -18,14 +18,16 @@ import request from '@ohos.request';
 默认支持https，如果要支持http，需要在config.json里增加network标签，属性标识 "cleartextTraffic": true。即：
 
 ```
+var config = {
   "deviceConfig": {
     "default": {
       "network": {
-        "cleartextTraffic": true
+        "cleartextTraffic":true
       }
-      ...
+      //...
     }
   }
+}
 ```
 
 
@@ -470,7 +472,6 @@ on(type: 'progress', callback:(receivedSize: number, totalSize: number) => vo
       console.info("download receivedSize:" + receivedSize + " totalSize:" + totalSize);
   }
   );
-  });
   ```
 
 
@@ -505,7 +506,6 @@ off(type: 'progress', callback?: (receivedSize: number, totalSize: number) =>
       console.info("download receivedSize:" + receivedSize + " totalSize:" + totalSize);
   }
   );
-  });
   ```
 
 
@@ -533,7 +533,6 @@ on(type: 'complete'|'pause'|'remove', callback:() => void): void
       console.info('Download task completed.');
   }
   );
-  });
   ```
 
 
@@ -561,7 +560,6 @@ off(type: 'complete'|'pause'|'remove', callback?:() => void): void
       console.info('Download task completed.');
   }
   );
-  }); 
   ```
 
 
@@ -595,7 +593,6 @@ on(type: 'fail', callback: (err: number) => void): void
       console.info('Download task failed. Cause:' + err);
   }
   );
-  });
   ```
 
 
@@ -629,7 +626,6 @@ off(type: 'fail', callback?: (err: number) => void): void
       console.info('Download task failed. Cause:' + err);
   } 
   );
-  });
   ```