[AETHER-1752]: Make aether-monitoring repo Member-Only license compliant

Change-Id: I5c17a2d9a1ab11bf871a66b59347d03a3186fb82
diff --git a/Makefile b/Makefile
index fca7084..0cf9df5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,6 @@
+# SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+#
+# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+
 .DEFAULT:
 	make -C edge-monitoring-server $@