Add registration link for 22021-11-12

_events/2021/11/2021-11-12-python.md

@@ -4,13 +4,13 @@ layout: event
 organizers:
   - erxleben
 lecturers:
-  - TBA
+  - erxleben
 type:   workshop
 start:
     date:   "2021-11-12"
 end:
     date:   "2021-11-15"
-registration_link:
+registration_link: "https://events.hifis.net/event/225/"
 location:
     campus: online
 fully_booked_out: false