How to open .ipynb pages as normal jupyter notebooks

You can just open an already created jupyter notebook (the file with .ipynb) in a notepad and replace its text from the text in your link.

Steps

1. Create a totally new jupyter notebook project.
2. Go to the file location and open it with notepad
3. Remove all the content from the notepad
4. Replace it with the content in your link https://faculty.washington.edu/sbrunton/me564/python/Python_Introduction.ipynb
5. Save the notepad and close it.
6. Open the same file as a notebook using Jupyter notebook or Google Colab