Update Assignment2.md

Assignment2.md

@@ -227,6 +227,9 @@ $ docker run -it busybox sh
 bin dev etc home proc root sys tmp usr var
 / # uptime
 05:45:21 up 5:58, 0 users, load average: 0.00, 0.01, 0.04
+/ # cd home && pwd
+/home
+/ # exit
 ```
 
 #### 3. docker rm