Update kavita.json (#1447)

Author: michelroegl-brunner

json/kavita.json

@@ -30,5 +30,9 @@
         "username": null,
         "password": null
     },
-    "notes": []
-}
+    "notes": [{
+        "text": "To enable folder adding append your lxc.conf on your host with 'lxc.environment: DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1'",
+        "type": "info"
+      }
+    ]
+}