GENERATE PDF PREVIEWS: top portion of page: $ convert -density 150 'pdfs/3091-final-exam-cheat-sheet.pdf[0]' -quality 90 -gravity north -crop 100%x50%+0+0 pdf-previews/3091-final-exam-cheat-sheet-preview.png
START SERVER IN TERMINAL: python -m http.server 8000 -> server will be on http://localhost:8000/