refactor Makefile help to be more compact

Makefile

@@ -1,23 +1,16 @@
 VERSION = $(shell cat VERSION)
-PROJECT=./example_project
-MANAGE=$(PROJECT)/manage.py
-
-help:
-	@echo "make commands:"
-	@echo "  make help       - this help"
-	@echo "  make quickstart - setup a dev environment the first time"
-	@echo "  make clean      - remove generated files"
-	@echo "  make test       - run test suite"
-	@echo "  make coverage   - get coverage report"
-	@echo "  make resetdb    - delete and recreate the sqlite database"
-	@echo "  make release    - publish a release to PyPI"
-
-# just a demo of how to get up and running quickly
+PROJECT = ./example_project
+MANAGE = $(PROJECT)/manage.py
+
+help: ## Shows this help
+	@echo "$$(grep -h '#\{2\}' $(MAKEFILE_LIST) | sed 's/: #\{2\} /	/' | column -t -s '	')"
+
+quickstart: ## Set up a dev environment for the first time
 quickstart: resetdb
 	python $(MANAGE) createsuperuser
 	python $(MANAGE) runserver
 
-clean:
+clean: ## Remove generated files
 	rm -rf .coverage
 	rm -rf .tox
 	rm -rf MANIFEST
@@ -28,22 +21,20 @@ clean:
 	find . -name "*.pyc" -delete
 	find . -name ".DS_Store" -delete
 
-test:
+test: ## Run test suite
 	python -W ignore::RuntimeWarning $(MANAGE) test django_object_actions
 
-coverage:
+coverage: ## Run and then display coverage report
 	coverage erase
 	coverage run $(MANAGE) test django_object_actions
 	coverage report --show-missing
 
-# destroy and then recreate your database
-resetdb:
+resetdb: ## Delete and then recreate the dev sqlite database
 	python $(MANAGE) reset_db --router=default --noinput
 	python $(MANAGE) syncdb --noinput
 	python $(MANAGE) migrate --noinput
 	python $(MANAGE) loaddata sample_data
 
-# Set the version. Done this way to avoid fancy, brittle Python import magic
 version:
 	@sed -i -r /version/s/[0-9.]+/$(VERSION)/ setup.py
 	@sed -i -r /version/s/[0-9.]+/$(VERSION)/ django_object_actions/__init__.py
@@ -53,6 +44,7 @@ version:
 # 2. run `make release`
 # 3. `git push --tags origin master`
 # 4. update release notes
+release: Publish a release to PyPI
 release: clean version
 	@git commit -am "bump version to v$(VERSION)"
 	@git tag v$(VERSION)