updates server list

docs/public/server/servers.json

@@ -3,9 +3,18 @@
         "name": "Demo Server",
         "url": "https://demo.wanderer.to",
         "description": "A public demo instance of wanderer. Everyone can log in and try out all features—upload trails, create lists, explore the interface, and test federation. Data is reset periodically, so feel free to experiment.",
-        "image": "/server/imgs/demo-logo.png",
+        "image": "/server/imgs/wanderer.to.png",
         "region": "World",
         "language": "English",
         "category": "General"
+    },
+    {
+        "name": "Trails by Softwerke Magdeburg",
+        "url": "https://trails.magdeburg.jetzt",
+        "description": "Find and share cool places & tours near Magdeburg & Saxony-Anhalt on this public instance. It is run by Softwerke Magdeburg, a non-profit association that's locally providing various free & open services to the public.",
+        "image": "/server/imgs/magdeburg.jetzt.png",
+        "region": "Magdeburg & Saxony-Anhalt",
+        "language": "German",
+        "category": "General Outdoor / Regional"
     }
 ]