When talking about applications that provides UI (web or desktop), we usually talk about MVC architecture. And as the name suggests, MVC pattern is based on three components: Model, View, and Controller. The developer provides the Model, the view and the template then just maps it to a URL and Django does the magic to serve it to the user.
for using this project you need to add settings.py file into portfolio directory and create a folder and named it static and add your images and resume.pdf to it or you can add your file in root directory and use"python manage.py collectstatic " command.