Merge branch 'tutorial-6' into 'master'

.gitignore

README.md

config.toml

requirements.txt

tutorial/settings.py

tutorial_2/tests/__init__.py

tutorial_2/tests/test_mutation.py

tutorial_2/views.py

tutorial_2/views_mutation.py

tutorial_4/functional_tests.py

tutorial_5/functional_tests/base.py

tutorial_6/__init__.py

tutorial_6/admin.py

tutorial_6/apps.py

tutorial_6/migrations/__init__.py

tutorial_6/models.py

tutorial_6/tests.py

tutorial_6/views.py