Change license from ONF-Member-Only to Apache-2.0

Change-Id: If5c78f555fb737a18a3ae4c216ea3e2630b101bc
diff --git a/advanced/connectivity.rst b/advanced/connectivity.rst
index c9d1f01..7ad3a12 100644
--- a/advanced/connectivity.rst
+++ b/advanced/connectivity.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 Advanced Connectivity
 =====================
 
diff --git a/advanced/connectivity/dhcp-relay.rst b/advanced/connectivity/dhcp-relay.rst
index ac24ff1..3bc22cd 100644
--- a/advanced/connectivity/dhcp-relay.rst
+++ b/advanced/connectivity/dhcp-relay.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 DHCP Relay
 ==========
 
diff --git a/advanced/connectivity/dual-homing.rst b/advanced/connectivity/dual-homing.rst
index 74e6496..2ca5c75 100644
--- a/advanced/connectivity/dual-homing.rst
+++ b/advanced/connectivity/dual-homing.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 Dual Homing
 ===========
 
diff --git a/advanced/connectivity/external-connectivity.rst b/advanced/connectivity/external-connectivity.rst
index 5231df7..1f887b1 100644
--- a/advanced/connectivity/external-connectivity.rst
+++ b/advanced/connectivity/external-connectivity.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 External Connectivity
 =====================
 
diff --git a/advanced/int.rst b/advanced/int.rst
index 2832583..85f1e99 100644
--- a/advanced/int.rst
+++ b/advanced/int.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 .. _int:
 
 In-band Network Telemetry (INT)
diff --git a/advanced/qos.rst b/advanced/qos.rst
index a22bd6f..d51b0ae 100644
--- a/advanced/qos.rst
+++ b/advanced/qos.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 .. _slicing_qos:
 
 Slicing and QoS
diff --git a/advanced/upf.rst b/advanced/upf.rst
index 265bad4..a7ddb2b 100644
--- a/advanced/upf.rst
+++ b/advanced/upf.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 .. _p4_upf:
 
 P4-based User Plane Function (P4-UPF)