Major overhaul:

- transition to `pyproject.toml` config
- include license (Apache-2.0)
- add dev tools
- add documentation config (`mkdocs` based)
- turn `README.md` into a symlink to docs `index.md`
- add convenience scripts for testing and linting

docs/index.md

@@ -0,0 +1,15 @@
+# ${REPO_NAME}
+
+${REPO_DESCRIPTION}
+
+## Usage
+
+...
+
+## Installation
+
+`pip install ${REPO_NAME}`
+
+## Dependencies
+
+Python Version ..., OS ...