Flake8-markdown

What's Changed
* chore: Python & package updates by johnfraney in https://github.com/johnfraney/flake8-markdown/pull/15
* docs: replace Travis with GithHub in README by johnfraney in https://github.com/johnfraney/flake8-markdown/pull/16
* chore: prepare v0.5.0 release by johnfraney in https://github.com/johnfraney/flake8-markdown/pull/17


**Full Changelog**: https://github.com/johnfraney/flake8-markdown/compare/v0.4.0...v0.5.0

Added

- Added support for `flake8` v5
- Added support for `python` 3.10

Removed

- Dropped support for `python` 3.6

Added

- Added support for `flake8` v4

Added

- [`pycon`](http://pygments.org/docs/lexers/#pygments.lexers.python.PythonConsoleLexer) code block support (1)

Changed

- Fixed pre-commit example in README

Added

- Added initial release