Update social-event.md

changes:

tickets are now available for pre-order

tickets are only meant for conference attendees.

Author: mborus

src/content/pages/social-event.md

@@ -54,9 +54,9 @@ comfortable shoes if you’d like to take part in the games!
 
 **Please note:** This event is not included in the conference ticket.
 
-Tickets will be available soon via our ticket shop and will be limited in
-number. Keep an eye on our announcements on social media and newsletter to make
-sure you don’t miss out.
+Tickets are available via our ticket shop and will be limited in
+number. You will receive the voucher code to pre-order them by mail.
+Please note the event is meant for conference attendees only.
 
 ## When & Where?