Here are the steps to publish your page in peso. If you need to see the detail, please following the links to examples
$ pwd
/home/your_user_name
$ ls -F
public_html/ <-- If no such directory, you need to create one
$ mkdir public_html
For example, you call your file hw3.html and put it in public_html directory. You can find it in http://peso.ecom.cmu.edu/~your_user_name/hw3.html