Suggestions for overview notebook 4

[Matt Craig]

I have a few suggestions for notebooks/overview_4_charge_injection_data in the default workspace:

• Consider adding a banner at or near the top of the notebook that installing numba will make this one run much faster (at least 60x faster in my case, maybe more). I had ignored the numba warnings up to this point because it didn't seem to make much difference until I got to this notebook.
• Add a cell with the commands to run each of the three scripts that need to be run, perhaps:

!python scripts/imaging_ci/simulators/overview/uniform.py
!python scripts/imaging_ci/simulators/overview/non_uniform_cosmic_rays.py
!python scripts/imaging_ci/simulators/overview/calibrate.py

(this is the last issue 😀 )

[James Nightingale]

Numba warning added :).

I have also already the example python runs.