Update README.md

README.md

@@ -28,7 +28,7 @@
 #### 用户登陆
 ![输入图片说明](https://code.educoder.net/repo/pq3l7nfbs/Ticket-prediction-system-based-on-machine-learning/raw/branch/master/%E5%9B%BE%E7%89%871.png)
 #### 用户首页
-![输入图片说明](https://images.gitee.com/uploads/images/2021/0515/213500_e494154b_8240652.jpeg "Snipaste_2021-05-15_21-27-15 2.jpg")
+![输入图片说明](https://code.educoder.net/repo/pq3l7nfbs/Ticket-prediction-system-based-on-machine-learning/raw/branch/master/%E5%9B%BE%E7%89%872.png)
 
 #### 按不同类型搜索
 ![输入图片说明](https://images.gitee.com/uploads/images/2021/0515/223442_d79a52ad_8240652.png "Snipaste_2021-05-15_21-39-53.png")