Update Makefile (#739)

Author: bichanna

Makefile

@@ -1,15 +1,19 @@
+.PHONY: all
 all:
 	@echo "**********************************************************"
 	@echo "**                    chi build tool                    **"
 	@echo "**********************************************************"
 
 
+.PHONY: test
 test:
 	go clean -testcache && $(MAKE) test-router && $(MAKE) test-middleware
 
+.PHONY: test-router
 test-router:
 	go test -race -v .
 
+.PHONY: test-middleware
 test-middleware:
 	go test -race -v ./middleware