Add License header to the Makefile

Missing License header in the Makefile was added.

Signed-off-by: Kairo de Araujo <[email protected]>

Author: Kairo de Araujo

Makefile

@@ -1,6 +1,11 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2022 VMware, Inc. All Rights Reserved.
+# SPDX-License-Identifier: BSD-2-Clause
+
 build-dev:
 	docker build -t tern-rest-api:dev .
 
-
 serve-dev: build-dev
 	docker run --rm --name tern-rest-api -e ENVIRONMENT=DEVELOPMENT --privileged -v /var/run/docker.sock:/var/run/docker.sock -v $(PWD):/opt/tern-rest-api -p 5001:80 tern-rest-api:dev