diff --git a/_static/images/SD-Core-Architecture.png b/_static/images/SD-Core-Architecture.png
new file mode 100644
index 0000000..46c5302
--- /dev/null
+++ b/_static/images/SD-Core-Architecture.png
Binary files differ
diff --git a/_static/images/SD-Core-Overview.png b/_static/images/SD-Core-Overview.png
new file mode 100644
index 0000000..c85d900
--- /dev/null
+++ b/_static/images/SD-Core-Overview.png
Binary files differ
diff --git a/_static/images/Sd-Core-Aether-Integral.jpg b/_static/images/Sd-Core-Aether-Integral.jpg
new file mode 100644
index 0000000..0b310ae
--- /dev/null
+++ b/_static/images/Sd-Core-Aether-Integral.jpg
Binary files differ
diff --git a/images/sdcore-logo.svg b/_static/sdcore-logo.svg
similarity index 100%
rename from images/sdcore-logo.svg
rename to _static/sdcore-logo.svg
diff --git a/configuration/application_filtering.rst b/configuration/application_filtering.rst
index 606f76e..5fd79dc 100644
--- a/configuration/application_filtering.rst
+++ b/configuration/application_filtering.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 .. _application-filtering:
 
 Application Filtering Overview
diff --git a/configuration/config.rst b/configuration/config.rst
index 155082f..8de4458 100644
--- a/configuration/config.rst
+++ b/configuration/config.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 Configuration Overview
 ======================
 
diff --git a/configuration/config_rest.rst b/configuration/config_rest.rst
index 63d6a76..f34f939 100644
--- a/configuration/config_rest.rst
+++ b/configuration/config_rest.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 Configuration using REST Interface
 ==================================
 
diff --git a/configuration/config_simapp.rst b/configuration/config_simapp.rst
index 28bef33..b015b19 100644
--- a/configuration/config_simapp.rst
+++ b/configuration/config_simapp.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 Configuration using Simapp POD
 ==============================
 
diff --git a/developer/aiab.rst b/developer/aiab.rst
index c8050be..e4b9c6b 100644
--- a/developer/aiab.rst
+++ b/developer/aiab.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 .. vim: syntax=rst
 
 ================
diff --git a/developer/gnbsim.rst b/developer/gnbsim.rst
index 0ef97f1..043d230 100644
--- a/developer/gnbsim.rst
+++ b/developer/gnbsim.rst
@@ -1,3 +1,6 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
 .. _gNB-Simulator:
 
 gNB Simulator
diff --git a/developer/testpod.rst b/developer/testpod.rst
index 19a2484..d30a397 100644
--- a/developer/testpod.rst
+++ b/developer/testpod.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 TestPod
 ========
 
diff --git a/dict.txt b/dict.txt
index 121a137..a62d2f7 100644
--- a/dict.txt
+++ b/dict.txt
@@ -1,4 +1,10 @@
+scalable
+disaggregated
+pre
+dataplane
+prometheus
 ap
+apis
 Gx
 Sxab
 Resynchronization
diff --git a/glossary.rst b/glossary.rst
index 0c7823b..b0c598a 100644
--- a/glossary.rst
+++ b/glossary.rst
@@ -1,3 +1,8 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+
 Glossary
 ========
 
@@ -5,11 +10,11 @@
 ---------
 - NGAP: NG Application Protocol used over N2 interface
 - S1AP: S1 Application Protocol used over S1-AP interface
-- Diameter: S6a
+- Diameter: S6a, Gx interface
 - NAS: Non-Access-Stratum used between UE & MME/AMF.
 - PFCP: Packet Forwarding Control Protocol
-- GTPv1
-- GTPv2
+- GTPU: GTP user plane protocol. Used on s1-U, s5-U, N3, N9 interfaces
+- GTPv2: GTP control plane protocol used on s11 interface between MME & SGW
 
 Network Functions
 -----------------
diff --git a/index.rst b/index.rst
index 1c68b43..5ae9d47 100644
--- a/index.rst
+++ b/index.rst
@@ -1,4 +1,9 @@
-.. image:: images/sdcore-logo.svg
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+
+.. image:: _static/sdcore-logo.svg
    :width: 400px
    :align: center
 
diff --git a/overview/3gpp-compliance-4g.rst b/overview/3gpp-compliance-4g.rst
index b9e1bfe..abdfa5b 100644
--- a/overview/3gpp-compliance-4g.rst
+++ b/overview/3gpp-compliance-4g.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 .. _4g-compliance:
 
 4G - 3GPP Release Compliance
diff --git a/overview/3gpp-compliance-5g.rst b/overview/3gpp-compliance-5g.rst
index 94fc629..c58adad 100644
--- a/overview/3gpp-compliance-5g.rst
+++ b/overview/3gpp-compliance-5g.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 .. _5g-compliance:
 
 5G - 3GPP Release Compliance
diff --git a/overview/architecture.rst b/overview/architecture.rst
index 450b00c..3182ce5 100644
--- a/overview/architecture.rst
+++ b/overview/architecture.rst
@@ -1,9 +1,55 @@
-Architecture
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+SD-Core Architecture
 ====================
 
+    * SD-Core is a flexible, agile, scalable and configurable dual-mode 4G/5G core
+      network platform that builds upon and enhances ONF’s OMEC and free 5GC core
+      network platforms to support LTE, 5G NSA and 5G SA services.
+
+    * The SD-Core control plane provides the flexibility of simultaneous supports
+      for 5G standalone, 5G non-standalone and 4G/LTE deployments.
+
+    * SD-Core provides a rich set of APIs to Runtime Operation Control (ROC).
+
+        * Operators can use these APIs to provision the subscribers in the mobile core;
+        * Control runtime configuration of network functions
+        * Provide telemetry data to third party applications
+        * Third party applications can leverage telemetry data to create applications
+          for closed loop control.
+
+.. image:: ../_static/images/SD-Core-Architecture.png
+  :width: 700px
+
+Multiple Distributed User Planes
+--------------------------------
+
+SD-Core has three User Plane Functions (UPFs) designed to be deployed throughout
+the network edge. Each UPF is optimized to handle specific classes of application
+and take advantage of various hardware acceleration options. Deployments can
+intermix the UPF variants.
+
+    * P4-Based UPF optimized for private enterprise deployments, and providing fine-grained
+      visibility for verifiable performance and secure operations
+    * Containerized Dual-Core UPF optimized for private enterprise deployments, capable of
+      processing LTE and 5G traffic simultaneously
+    * Containerized Dual-Core UPF optimized for various MNO use cases, capable of processing
+      LTE and 5G traffic simultaneously
+
+
+SD-Core architecture is modular and apis are provided to manage connectivity service.
+
+    - Connectivity service is designed in such a way that it can be consumed easily and its
+      easy to configure. Please refer ``configuration section``. Configuration APIs are same
+      for 4G & 5G service.
+    - Metrics are exposed from SD-Core which helps network admins and application developers.
+    - Application filtering is supported to restrict the access to applications.
+
 Architecture Diagram showing SD-Core box
 ----------------------------------------
-- Diagram should show ROC interface, Prom interface, UPF interface, gNB/eNB interface
+- Diagram should show ROC interface, prometheus interface, UPF interface, gNB/eNB interface
 
 Architecture Diagram of SD-Core 4G block
 ----------------------------------------
diff --git a/overview/faq.rst b/overview/faq.rst
index 144696f..dd19249 100644
--- a/overview/faq.rst
+++ b/overview/faq.rst
@@ -1,2 +1,6 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 FAQs
 ====
diff --git a/overview/introduction.rst b/overview/introduction.rst
index 4f04c83..5c0ba52 100644
--- a/overview/introduction.rst
+++ b/overview/introduction.rst
@@ -1,5 +1,43 @@
-Introduction
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+SD-Core Introduction
 ====================
-* White paper link
-* Community wiki page or meeting details
-* Generic description of SD Core projects...
+
+The SD-Core™ project is a 4G/5G disaggregated mobile core optimized for public
+cloud deployment in concert with distributed edge clouds and is ideally suited
+for carrier and private enterprise 5G networks. It exposes standard 3GPP interfaces
+enabling use of SD-Core as a conventional mobile core. It is also available
+pre-integrated with an adapter (part of the Aether ROC subsystem) for those
+deploying it as a mobile core as-a-service solution.
+
+SD-Core is an integral component of Aether, ONF’s 5G Connected Edge platform for
+private mobile connectivity and edge cloud services. It can be rapidly deployed
+pre-integrated with Aether, as a standalone 5G/4G mobile core, or as control and
+dataplane (UPF) components integrated into custom designed solutions. This range
+of versatility makes the open source SD-Core platform ideally suited for the
+broadest range of use cases and deployment scenarios.
+
+SD-Core Overview
+----------------
+
+    - Ensure only authenticated mobile devices have network access
+    - Provides IP connectivity for data & voice services
+    - Ensures connectivity adheres to QoS and network slice policies
+    - Tracks user mobility to ensure uninterrupted service
+    - Tracks subscriber usage
+
+.. image:: ../_static/images/SD-Core-Overview.png
+  :width: 700px
+
+SD-Core is an Integral Part of Aether
+-------------------------------------
+
+    - SD-Core is an integral component of Aether, ONF’s 5G Connected Edge platform for
+      private mobile connectivity and edge cloud services.
+    - SD-Core provides the 4G/5G connectivity and the SD-Core control plane at the central
+      site controls multiple SD-Core user plane components running at each Aether Edge site.
+
+.. image:: ../_static/images/Sd-Core-Aether-Integral.jpg
+  :width: 700px
diff --git a/readme.rst b/readme.rst
index 6b25028..b25e5b9 100644
--- a/readme.rst
+++ b/readme.rst
@@ -1,3 +1,8 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+
 Documentation Guide
 ===================
 
diff --git a/release/1.0.rst b/release/1.0.rst
index b4abdf4..222c393 100644
--- a/release/1.0.rst
+++ b/release/1.0.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 SD-Core 1.0 Release
 ===================
 
diff --git a/release/process.rst b/release/process.rst
index f4cc7a2..1f88dc1 100644
--- a/release/process.rst
+++ b/release/process.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 Release Process
 ===============
 
diff --git a/troubleshooting/flowchart.rst b/troubleshooting/flowchart.rst
index 3efe99f..3d2c610 100644
--- a/troubleshooting/flowchart.rst
+++ b/troubleshooting/flowchart.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 Connectivity Troubleshooting FlowChart
 ======================================