modify the template used to set the topic to use the wording from the web page (#1)

Co-authored-by: eeemsi <eeemsi+git-uugrn@gmail.com>
Reviewed-on: #1
Co-authored-by: eeemsi <eeemsi@noreply.git.uugrn.org>
Co-committed-by: eeemsi <eeemsi@noreply.git.uugrn.org>

start.sh

@@ -41,7 +41,7 @@ settopic() {
                 | cut -d"|" -f1 \
                 | sed 's/ $//g')
 
-        say "/topic $CHANNEL :Willkommen bei der UUGRN | Nächstes event: $text am $date um $time Uhr."
+        say "/topic $CHANNEL :Willkommen bei der UUGRN | Nächste Veranstaltung: $text am $date um $time Uhr."
     done
 }