Add several routine commands

Signed-off-by: Alexander Kurbatov <sir.alkurbatov@yandex.ru>

Author: alkurbatov

Makefile

@@ -0,0 +1,11 @@
+MAKEFLAGS = --warn-undefined-variables
+MAKEFLAGS += --no-builtin-rules
+
+.DEFAULT_GOAL := help
+.PHONY: all $(MAKECMDGOALS)
+
+help: ## Display this help screen
+	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "\033[36m%-38s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)
+
+lint: ## Lint the source code
+	golangci-lint run