Update.

Makefile

@@ -0,0 +1,22 @@
+.PHONY: install run test coverage clean all
+
+install:
+	pip install -r requirements.txt
+
+run:
+	python -m retoors.main
+
+test:
+	pytest
+
+coverage:
+	pytest --cov=retoors --cov-report=term-missing --cov-report=html
+
+clean:
+	find . -type f -name "*.pyc" -delete
+	find . -type d -name "__pycache__" -exec rm -rf {} +
+	find . -type d -name ".pytest_cache" -exec rm -rf {} +
+	rm -f .coverage
+	rm -rf htmlcov
+
+all: install test