Changes

ChangeLog: * Meetings-in-2023.md:
Matthias Kretz · 093ffddd
--- a/Meetings-in-2023.md
+++ b/Meetings-in-2023.md
@@ -25,5 +25,5 @@
 |   01 Nov   |                    |  | Aim to invite GSI/FAIR-wide to increase the audience |
 |   15 Nov   |                    |  |
 |   29 Nov   |                    |  |
-|   13 Dez   |                    |  |
+| ~~13 Dez~~ | _Weihnachtsfeier_  | ---- |
 | ~~27 Dez~~ | _Weihnachtsferien_ | ---- |