Brush up the go code

Makefile

@@ -1,9 +1,18 @@
+.PHONY: help
+help: ## Lists all commands available
+	# Snippet comes from: https://gist.github.com/prwhite/8168133#gistcomment-3785627
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m\033[0m\n"} /^[$$()% 0-9a-zA-Z_-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+.PHONY: build
+build: ## Build the main covergen CLI for the local platform
+	go build -o covergen ./cmd/covergen
+
+.PHONY: wasm
+wasm: ## Generate the main WASM blob
+	GOOS=js GOARCH=wasm go build -o covergen.wasm ./cmd/wasm/main.go
+
 .PHONY: build-cross-clis
-build-cross-clis:
+build-cross-clis: ## Builds the CLIs for all supported platforms
 	rm -rf ./dist && mkdir ./dist
 	GOOS=linux GOARCH=amd64 go build -o dist/covergen.linux-amd64 ./cmd/covergen
 	GOOS=darwin GOARCH=amd64 go build -o dist/covergen.darwin-amd64 ./cmd/covergen
-
-.PHONY: wasm
-wasm:
-	GOOS=js GOARCH=wasm go build -o covergen.wasm ./cmd/wasm/main.go