My guide to fractals in Python has two Jupyter notebooks:
Guide to fractal math using Python.
This one describes the basics of fractal math, showing the basic Mandelbrot set. It also explores the idea of orbit traps.
Interactive fractal explorer using Jupyter widgets
This is a Jupyter notebook with widgets that lets you explore a Mandelbrot or Julia set interactively by zooming, panning, and changing the parameters. The online version will not be interactive, but is shown to give a preview.