Merge pull request #8 from primetheus/chore/bump-version-0.2.7

chore: bump version to 0.2.7

increment version

Merge pull request #5 from primetheus/primetheus/rate-limiting

Feat: rate limiting

Merge pull request #4 from primetheus/primetheus/oauth2-httpx

Feat: Add OAuth2 GitHub App authentication, migrate from requests to httpx

Update version in pyproject.toml

Fix tests, update some inaccuracies in the README

fix references to pipenv in README.md

increment version

minor updates to readme