feat(ci/cd): build and deploy steps in Makefile (#32)

Makefile

@@ -4,11 +4,25 @@ clear-pycache:
 
 .PHONY: pip-install
 pip-install:
-	python -m pip install -r requirements.txt
+	python3 -m pip install -r requirements.txt
 
 .PHONY: unittest
 unittest:
-	python -m unittest
+	python3 -m unittest
+
+.PHONY: build
+build:
+	python3 -m pip install pip --upgrade
+	python3 -m pip install build --upgrade
+	python3 -m build
+
+.PHONY: deploy
+deploy:
+	python3 -m pip install twine --upgrade
+	python3 -m twine upload --repository pypi dist/*
 
 .PHONY: clean-unittest
 clean-unittest: clear-pycache unittest
+
+.PHONY: build-and-deploy
+build-and-deploy: build deploy