Bump version to 0.2.2

Bump version (cjolowicz#16)

* Bump version to 0.2.0

* Bump version to 0.2.1

Upgrade dependencies (cjolowicz#15)

* Upgrade to darglint 1.1.3

* Upgrade to flake8-bugbear 20.1.4

* Upgrade to jinja2 2.11.1

* Upgrade to marshmallow 3.4.0

* Upgrade to more-itertools 8.2.0

* Upgrade to pytest 5.3.5

hypermodern-python 0.1.0