Adding day of week to date format?

Yes, this is possible. You'll want to first fork an editable copy of your template if you haven't already, then you'll want to open up the template editor and navigate to the source code section then change the date_display property in your template's package.json file to the format of your choice. You can refer to the list of tokens which you can use in this setting. The token dddd renders as the day of the week, so consider something like this:

"date_display": "dddd MMMM D, Y",

thank you!!!