Add app screenshot to README (v2.3.2)

README.md

@@ -11,6 +11,8 @@ A self-hosted, real-time collaborative travel planner for organizing trips with
 
 **[Live Demo](https://demo-nomad.pakulat.org)** — Try NOMAD without installing. Resets hourly.
 
+![NOMAD Screenshot](docs/screenshot.png)
+
 ## Features
 
 - **Real-Time Collaboration** — Plan together via WebSocket live sync — changes appear instantly across all connected users

server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "nomad-server",
-  "version": "2.3.1",
+  "version": "2.3.2",
   "main": "src/index.js",
   "scripts": {
     "start": "node --experimental-sqlite src/index.js",