Muddiest poiont about Khoa

While there is a notation about the url there is no explication on actually how to get the url. It's the one that pops up when you complete the assignment. I tried counting the other 'shelves' to find the number, that did not work. Only when I clicked on my shelf did I see the number at the end that when inserted into the url (at the end) provided by the TA did I go to the shelf. Maybe this is because I don't create or write programs. Unfortunately, I need virtually step by step instructions when it comes to creating files on the computer.