Updates 家长端服务/接口文档.md

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@@ -14,8 +14,8 @@ POST https://api.boxfish.cn/signup
 
 
 返回值
 返回值
 
 
-```
-{
+```json
+{   
    "username": "user161116141854MKyNqTI3",
    "username": "user161116141854MKyNqTI3",
    "status": "success"
    "status": "success"
 }
 }