For all the project to run, you MUST have a virtual enviroment with python or use anaconda or something like that For running the proyect, you must use window's cmd. Go to the repository where you store this folder and get the cmd to the path where manage.py is. After that, for all to work you type python manage.py runserver and the server will start running. Finally, you search the url the server gave to you as an output of runserver and you got the app running on your browser.
For any changes in the models, you should make the migrations, for this, type in the cmd python manage.py makemigrations, enter and then python manage.py migrate. After a short period of time, the migrations will be done and you will be able to edit the contents of the database.