Create: lab_08.md

Update: check_teamwork.py

Update: lab_07.md

Delete: check.yml

Update: lab_07.md

Update: lab_07.md

Update: lab_07.md

Update: lab_07.md

Update: SKILL_GUIDE.md, START.md, variants.zip

Create: SKILL_GUIDE_1.md, START_1.md, variants_1.zip, Delete: SKILL_GUIDE.md, variants.zip, START.md

Update: checker.py

Update: SKILL_GUIDE.md