diff --git a/README.md b/README.md
index 9f71c9a..7a0ff70 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ Run yeeshell.
 
 ​	(1) `cd /your/path`
 
-<img src="E:\undergraduate\sophomore\SEM2\OS\experiments\1 Shell\OS2021_Project1.Shell\lab_report\test_case_img\cd.png" alt="cd" style="zoom: 76%;" />
+<img src="http://gitea.shuishan.net.cn/10195501441/OS2021_Project1.Shell/src/commit/db0d8aefd25a6cac526eaa7ded9f058ec87b15f7/lab_report/test_case_img/cd.png" alt="cd" style="zoom: 76%;" />
 
 ​	(2) `ls -a -l`
 
diff --git a/lab_report/1 Shell.pdf b/lab_report/1 Shell.pdf
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diff --git a/lab_report/README.pdf b/lab_report/README.pdf
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