make help target

Make your first target 'help' to give an overview of the main targets. Running make help will search for text which starts with ## and show what that target does.

1help: ## Print the help message
2	@awk 'BEGIN {FS = ":.*?## "} /^[0-9a-zA-Z._-]+:.*?## / {printf "\033[36m%s\033[0m : %s\n", $$1, $$2}' $(MAKEFILE_LIST) | \
3		sort | \
4		column -s ':' -t
5
6clean: ## Remove generated files
7	$(RM) $(defaults)