MNT: Re-render notebooks

advanced_programming/context_managers.ipynb

advanced_programming/decorators.ipynb

advanced_programming/function_inputs_and_outputs.ipynb

advanced_programming/modules_and_packages.ipynb

advanced_programming/object_oriented_programming.ipynb

advanced_programming/operator_overloading.ipynb

advanced_programming/structuring_projects.ipynb

advanced_programming/threading.ipynb

getting_started/00_overview.ipynb

getting_started/01_basics.ipynb

getting_started/02_text_io.ipynb

getting_started/03_file_management.ipynb

getting_started/04_numpy.ipynb

getting_started/05_nifti.ipynb

getting_started/06_plotting.ipynb

getting_started/07_jupyter.ipynb

getting_started/08_scripts.ipynb