v0.3.1

Overview

• Handle case where no header is found by @cthoyt in #26
• Increase minimum python version to 3.7
• Full Changelog: v0.3.0...v0.3.1

Commits:

• 3492843 minor readme / gitignore fixes
• e22bf7b README: compare obonet to nxontology
• b53128c pre-commit autoupdate
• 6a06395 python_requires >=3.7, test 3.11
• 5dfe135 attempt to fix CI builds
• a393917 remove python version from readme
• 61b6cd8 Handle missing header (#26)
• dc8f084 README: remove another python version hardcoding