Add RabbitMQ based social-media backend tutorial

en/sidebars.ts

@@ -1892,6 +1892,14 @@ const sidebars: SidebarsConfig = {
             'guides/migration/from-tibco',
           ],
         },
+        // Tutorials
+        {
+          type: 'category',
+          label: 'Tutorials',
+          items: [
+            'guides/tutorials/social-media',         
+          ],
+        },
       ],
     },
     // DEPLOY