docs: deployement guide with new ui update settings

README.md

@@ -15,6 +15,10 @@ cp .env.example .env    # fill in PUBLIC_URL, JWT_SECRET and SMTP_*
 
 Data is stored in `./data/` by default. For a real server (systemd, HTTPS, backups), see **[docs/deployment.md](docs/deployment.md)**.
 
+### Updates from the browser
+
+On Linux with systemd, install v2.6.0-beta or newer manually, then follow [the browser-update setup guide](docs/deployment.md#browser-updates). It covers finding the actual database directory, installing the helper, testing a restart and troubleshooting. Other platforms use manual upgrades.
+
 ### Develop
 
 Requires Go 1.27+, Node.js 22, [Bun](https://bun.sh) and [Task](https://taskfile.dev).