updates to readme

README.md

docs/README.jinja.md

docs/README.md

docs/mkdocs.py

requirements.txt

src/unitgrade2/__pycache__/unitgrade2.cpython-38.pyc

src/unitgrade2/__pycache__/unitgrade_helpers2.cpython-38.pyc

src/unitgrade2/__pycache__/version.cpython-38.pyc

src/unitgrade2/unitgrade2.py

src/unitgrade2/unitgrade_helpers2.py

unitgrade/__pycache__/__init__.cpython-38.pyc

unitgrade/__pycache__/unitgrade_helpers.cpython-38.pyc

unitgrade/unitgrade_helpers.py

unitgrade2/__pycache__/unitgrade2.cpython-39.pyc

unitgrade2/__pycache__/unitgrade_helpers2.cpython-39.pyc