fixed description

README.md

@@ -9,11 +9,10 @@ services:
         image: registry.gitlab.lino3d.de:443/lino/berichtexporter/main:latest
         restart: unless-stopped
         ports:
-            - 80:80
+            - 3000:3000
         environment:
             - 'CALDAV_URL=https://example.com/calendars/' # URL to the caldav server
             - 'CALDAV_USER=USERNAME' # Username for the caldav server
             - 'CALDAV_PASSWORD=PASSWORD' # Password for the caldav server
             - 'CALDAV_CALENDAR=CALENDARNAME' # Calendar name from the caldav server
-            # - WEB_PORT=80 # Port for the webserver (optional)
 ```