Add support for documentation to just --list

[JakeSummers]

This tool looks awesome! Nice work.

One of the things that this tool is lacking right now is the ability to add documentation to tasks.

This is the pattern that I use in make:

The implementation of this is a terrible hack:

#===============================================
## Help

## Display this message
help:
	@printf "\033[1mUsage\033[0m\n"
	@awk '{ \
			if ($$0 ~ /^.PHONY: [a-zA-Z\-\_0-9]+$$/) { \
				helpCommand = substr($$0, index($$0, ":") + 2); \
				if (helpMessage) { \
					printf "\033[36m%-30s\033[0m %s\n", \
						helpCommand, helpMessage; \
					helpMessage = ""; \
				} \
			} else if ($$0 ~ /^[a-zA-Z\-\_0-9.]+:/) { \
				helpCommand = substr($$0, 0, index($$0, ":")); \
				if (helpMessage) { \
					printf "\033[36m%-30s\033[0m %s\n", \
						helpCommand, helpMessage; \
					helpMessage = ""; \
				} \
			} else if ($$0 ~ /^##/) { \
				if (helpMessage) { \
					helpMessage = helpMessage"\n                               "substr($$0, 3); \
				} else { \
					helpMessage = substr($$0, 3); \
				} \
			} else { \
				if (helpMessage) { \
					printf "\n\033[3;35m>%s \033[0m\n", helpMessage \
				} \
				helpMessage = ""; \
			} \
		}' \
		$(MAKEFILE_LIST)

#===============================================
## Local Development

## Setup your local development environment
setup: poetry-install codegen

Would adding something like this be possible?

[laniakea64]

just already has just -l, [group] attribute, and documentation comments / [doc] attribute. What other feature(s) would need to be added to achieve what you're seeking?