Merge branch 'main' of git.doit.wisc.edu:cdis/cs/courses/cs220/cs220-lecture-material

...checkpoints/lec16_list_practice_template-checkpoint.ipynb

...lec_notes/lec16_Oct14_List_Practice/cs220_survey_data.csv

...s/lec16_Oct14_List_Practice/lec16_list_practice_completed

...16_Oct14_List_Practice/lec16_list_practice_template.ipynb

.../lec16_Oct14_List_Practice/lec_16_worksheet_answers.ipynb

f22/andy_lec_notes/lec16_Oct14_List_Practice/readme.md