Update README.md

README.md

@@ -1,6 +1,6 @@
 #xyct
 //起始页面,收取顾客联系电话和就餐人数信息并点击点餐后跳转CustomerOrderWindow页面
-public class CustomerIndex extends JFrame implements ActionListener {
+    public class CustomerIndex extends JFrame implements ActionListener {
     Image image;
     JPanel jp,jp_phone,jp_person;
     JTextField jp_phone_jtf,jtf_person;