Jupyter can't convert notebooks containing images to PDF

[kelly-sovacool]

Jupyter cannot convert Key notebooks that contain images (e.g. Lesson 09 & 24). When running jupyter nbconvert in the build action, it fails with this error:

LaTeX Warning: File `https://raw.githubusercontent.com/GWC-DCMB/curriculum-note
books/main/Figures/IfElifElseDiagram.png' not found on input line [598](https://github.com/GWC-DCMB/curriculum-notebooks/actions/runs/3686899000/jobs/6239765330#step:7:599).

! Unable to load picture or PDF file 'https://raw.githubusercontent.com/GWC-DCM
B/curriculum-notebooks/main/Figures/IfElifElseDiagram.png'.
<to be read again> 
                   }
l.598 ...books/main/Figures/IfElifElseDiagram.png}
                                                  
? 
! Emergency stop.
<to be read again> 
                   }
l.598 ...books/main/Figures/IfElifElseDiagram.png}

Using local file paths instead of https links doesn't resolve the problem. It appears to be a known issue: jupyter/nbconvert#1079

Since we're mostly teaching in a flipped classroom style rather than with live-coding these days, let's temporarily stop trying to keep the PDFs updated until nbconvert resolves the issue.

[kelly-sovacool]

Consider using html instead. Might also prefer Quarto to make a website?