Added the IPWorkshop social card.

Author: genan2003

docusaurus.config.ts

@@ -71,7 +71,7 @@ const config: Config = {
 
   themeConfig: {
     // Replace with your project's social card
-    image: 'img/docusaurus-social-card.jpg',
+    image: 'img/ipworkshop-social-card.png',
     navbar: {
       title: 'IP Workshop Summer School',
       logo: {