v0.15.1

What's Changed

• fix: repair timing history and stale gate applicability by @ScienceIsNeato in #149
• Rewrite README as a field guide by @ScienceIsNeato in #150
• docs: add coverage-ready badges by @ScienceIsNeato in #151
• docs: consolidate documentation under DOCS by @ScienceIsNeato in #152
• chore: bump version to 0.15.1 for PyPI release by @ScienceIsNeato in #153

Full Changelog: v0.15.0...v0.15.1