Added the right file path

setup.bash

 #!/bin/bash
 yum update -y
-yum install cowsay java-1.8.0-openjdk* -y
 yum install httpd -y
 service httpd start
 chkconfig httpd on
 
-# next, add the extra disk space
-mkfs -t ext4 /dev/xvdf
-mkdir /space
-mount /dev/xvdf /space
-
-
-wget https://XXXXX.appspot.com/cacheavoid/hello.py -P /var/www/cgi-bin
-chmod +x /var/www/cgi-bin/hello.py
+wget https://gitlab.surrey.ac.uk/js03432/cloud-computing-cw/-/blob/main/val_sim.py-P /var/www/cgi-bin
+chmod +x /var/www/cgi-bin/val_sim.py