Meetings-in-2023.md

 |    Date    |     Presenter      | Topic Idea |
 |------------|--------------------|------------|
 | ~~04 Jan~~ | _Weihnachtsferien_ | ---- |
-|   11 Jan   |                    |  |
+|   11 Jan   | open discussion    |  |
 |   25 Jan   |                    |  |
 |   08 Feb   |                    |  |
 |   22 Feb   |                    |  |