Sanic-healthchecks

- Nothing changed. This library has been used in production long enough to feel
confident in it now.

Changed
- Renamed deploy task in `.circleci/config.yml` to publish
Added
- Added `--no-dev` in `.circleci/config.yml` deploy task
- Expose wrapper for aiohttp web response, instead of leaking that we're using aiohttp under the hood
- Badge for downloads per month added to README.md
- Example for multiple healthchecks running concurrently
Fixed
- CHANGELOG.md had 0.1.0 listed twice

Changed
- Went from MIT to Apache 2.0 License, to match aiohttp
- Example now uses `healthcheck_handler` instead of just `handler`
Added
- .github directory for basic templates
- Keywords and classifiers for PyPI listing
- LICENSE file
- README.md file

Added
- Initial version. Includes sanic_healthchecks.start_healthchecks_server