Add Edinburgh AI to SIGs list

Author: allc

messages/readme.xml

@@ -79,6 +79,15 @@ Cloud (registered AWS Cloud Club)
 • [MeetUp.com](https://www.meetup.com/aws-cloud-club-the-university-of-edinburgh/)
       ]]></content>
     </field>
+    <field inline="true">
+      <title>Edinburgh AI</title>
+      <content><![CDATA[
+Artificial Intelligence
+• <#1183134687548407929>
+• [Join Discord!](https://discord.gg/TgF6B7y9WM)
+• [Website](https://edinburghai.org/)
+      ]]></content>
+    </field>
     <field>
       <title> </title>
       <content><![CDATA[