Format pytest marker changes with black.

Update branch names in workflows

Updates versioneer for Python 3.11 and updated supported versions and…

… tests

Add stream vs. stack benchmarks to README

Merge pull request #17 from brandonwillard/generic-assoc

Make assoc a generic function

Add missing Python 3.8 classifier

Restore unification order

Merge pull request #16 from brandonwillard/tail-call-optimization

Introduce stream/trampoline-based reification and unification

Merge pull request #12 from brandonwillard/fix-package-name

Fix PyPi package name in README

Merge pull request #11 from brandonwillard/fix-isground-iter

Fix isground for iterator types