Update diagram

docs/DEPLOY_SA5G_WITH_VPP_UPF.md

+<table style="border-collapse: collapse; border: none;">
+  <tr style="border-collapse: collapse; border: none;">
+    <td style="border-collapse: collapse; border: none;">
+      <a href="http://www.openairinterface.org/">
+         <img src="./images/oai_final_logo.png" alt="" border=3 height=50 width=150>
+         </img>
+      </a>
+    </td>
+    <td style="border-collapse: collapse; border: none; vertical-align: center;">
+      <b><font size = "5">OpenAirInterface 5G Core Network Deployment and Testing with gnbsim</font></b>
+    </td>
+  </tr>
+</table>
+
+![SA dsTest Demo](./images/5gcn_vpp_upf.jpg)
+
+**TABLE OF CONTENTS**
+
+1.  Pre-requisites
+2.  Building Container Images
+3.  Configuring Host Machines
+4.  Configuring OAI 5G Core Network Functions
+5.  [Deploying OAI 5G Core Network with VPP-UPF](#5-configuring-gnbsim-scenario)
+6.  [Configuring gnbsim Scenario](#6-configuring-gnbsim-scenario)
+7.  [Executing gnbsim Scenario](#7-executing-the-gnbsim-scenario)
+8.  [Analysing Scenario Results](#8-analysing-the-scenario-results)
+9.  [Trying some advanced stuff](#9-trying-some-advanced-stuff)
+
+* In this demo the image tags and commits which were used are listed below, follow the [Building images](./BUILD_IMAGES.md) to build images with below tags. 
+
+| CNF Name    | Branch Name             | Commit at time of writing                  | Ubuntu 18.04 | RHEL8          |
+| ----------- |:----------------------- | ------------------------------------------ | ------------ | ---------------|
+| AMF         | `develop`               | `82ca64fe8d79dbadbb1a495124ee26352f81bd7a` | X            | X              |
+| SMF         | `nwi`                   | `0dba68d6a01e1dad050f47437647f62d40acaec6` | X            | X              |
+| VPP_UPF     | `develop`               | `0e877cb5b80a9c74fa6abca60b95e2d3d22f7a52` | X            | X              |
+
+<br/>
+