update README.md

delete vecteezy_planet-earth-icon_22062583.png

delete vecteezy_3d-checklist-sign-icon-checkmark-agreement-approved_41493315.png

update README.md

create README.md

delete CONTRIBUTING.md

delete FILE_UPDATE_REPORT.md

upload files

upload files

update assignment.py

update python_hard.py

update python_medium.py

update python_easy.py

create REPORT.md

delete report.md

create report.md