Update paperless-ngx-v5.sh

increase disk to 8GB

ct/paperless-ngx-v5.sh

@@ -20,7 +20,7 @@ clear
 header_info
 echo -e "Loading..."
 APP="Paperless-ngx"
-var_disk="4"
+var_disk="8"
 var_cpu="2"
 var_ram="2048"
 var_os="debian"