Readme update

README.md

@@ -8,3 +8,6 @@ The demo is written on top of Google App Engine. Run
 $ mvn appengine:devserver
 ```
 for a local development server instance.
+
+## Intellij 啟動與偵錯
+https://cloud.google.com/code/docs/intellij/deploy-local
\ No newline at end of file

src/main/java/com/google/webauthn/gaedemo/service/UserProxyService.java

@@ -3,7 +3,9 @@ package com.google.webauthn.gaedemo.service;
 import com.google.appengine.api.users.User;
 
 public class UserProxyService {
+
     private static UserProxyService instance;
+
     private User user;
 
     public UserProxyService() {}