docs(Makefile): add help messages

Makefile

@@ -38,9 +38,9 @@ endif
 	-rf -rf backend/.stack
 
 
+# TODO: only release when build and tests are passing!!!
 .PHONY: release
 # HELP: create, commit and push a new release
-# TODO: only release when build and tests are passing!!!
 release:
 	VERSION=`./utils/version.pl -changelog CHANGELOG.md -v` ; \
 	git add CHANGELOG.md ; \
@@ -53,6 +53,7 @@ release:
 # HELP: perform full compilation (frontend and backend)
 compile: compile-frontend compile-backend ;
 .PHONY: compile-%
+# HELP(compile-$SERVICE): compile a given service once
 compile-%:
 	docker compose run --remove-orphans --build --no-deps $* make compile
 
@@ -61,27 +62,34 @@ compile-%:
 start: start-postgres start-maildev start-memcached start-minio start-backend
 	docker compose run backend make start
 .PHONY: start-%
+# HELP(start-$SERVICE): start a given service
 start-%:
 	docker compose up -d --build $*
 
 .PHONY: stop
+# HELP: stop all services
 stop:
 	docker compose down
 .PHONY: stop-%
+# HELP(stop-$SERVICE): stop a given service
 stop-%:
 	docker compose down $*
 .PHONY: kill-%
+# HELP(kill-$SERVICE): kill a given service the hard way. Use this if the servive does not respond to stop.
 kill-%:
 	docker compose kill $*
 
 .PHONY: status
+# HELP: print an overview of currently running services and their health
 status:
 	docker compose ps
 .PHONY: top
+# HELP: print an overview of the ressource usage of the currently running services
 top:
 	docker compose stats
 
 .PHONY: log-%
+# HELP(log-$SERVICE): follow the output of a given service. Service must be running.
 log-%:
 	docker compose logs --follow --timestamps $*