Added self creating Makefile help target

This updates the Makefile to include a default target of help
and it automatically generates the help based on the targets
and their descriptions.

Makefile

@@ -1,5 +1,7 @@
 REQUIREMENTS_TXT ?= requirements.txt dev-requirements.txt
+.DEFAULT_GOAL := help
 
+.PHONY: dev docs server test
 include Makefile.venv
 Makefile.venv:
 	curl \
@@ -7,52 +9,47 @@ Makefile.venv:
 			-L "https://github.com/sio/Makefile.venv/raw/v2020.08.14/Makefile.venv"
 	echo "5afbcf51a82f629cd65ff23185acde90ebe4dec889ef80bbdc12562fbd0b2611 *Makefile.fetched" \
 			| sha256sum --check - \
-			&& mv Makefile.fetched Makefile.venv
+	 		&& mv Makefile.fetched Makefile.venv
 
-all: pip dev
+help:	# Help for the Makefile
+	@egrep -h '\s##\s' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'
 
-.PHONY: dev
-dev: venv
-	$(VENV)/pre-commit install
+dev: venv  ## Create the virtualenv with all the requirements installed
 
-.PHONY: docs
 docs: build
 	cp README.rst docs/readme.rst
 	cp Changelog docs/changelog.rst
 	tox -edocs
 
-.PHONY: server
-server: venv
-	$(VENV)/aprsd server --loglevel DEBUG
-
-clean: clean-venv
+clean: clean-venv  ## Clean out any build artifacts to start over
 	rm -rf dist/*
 
-.PHONY: test
-test: dev
+test: dev  ## Run all the tox tests
 	tox -p all
 
-build: test
+build: test  ## Make the build artifact prior to doing an upload
 	$(VENV)/python3 setup.py sdist bdist_wheel
 	$(VENV)/twine check dist/*
 
-upload: build
+upload: build  ## Upload a new version of the plugin
 	$(VENV)/twine upload dist/*
 
-docker: test
-	docker build -t hemna6969/aprsd:latest -f docker/Dockerfile docker
-
-docker-dev: test
-	docker build -t hemna6969/aprsd:master -f docker/Dockerfile-dev docker
-
-update-requirements: dev
-	$(VENV)/pip-compile requirements.in
-	$(VENV)/pip-compile dev-requirements.in
-
-
-check: dev # Code format check with isort and black
+check: dev ## Code format check with tox and pep8
 	tox -efmt-check
 	tox -epep8
 
-fix: dev # fixes code formatting with isort and black
+fix: dev ## fixes code formatting with gray
 	tox -efmt
+
+server: venv  ## Create the virtual environment and run aprsd server --loglevel DEBUG
+	$(VENV)/aprsd server --loglevel DEBUG
+
+docker: test  ## Make a docker container tagged with hemna6969/aprsd:latest
+	docker build -t hemna6969/aprsd:latest -f docker/Dockerfile docker
+
+docker-dev: test  ## Make a development docker container tagged with hemna6969/aprsd:master
+	docker build -t hemna6969/aprsd:master -f docker/Dockerfile-dev docker
+
+update-requirements: dev  ## Update the requirements.txt and dev-requirements.txt files
+	$(VENV)/pip-compile requirements.in
+	$(VENV)/pip-compile dev-requirements.in