specify semester for registration

courses/ai1sysproj.md

@@ -24,7 +24,7 @@ To get an idea of the problems, you can take a look at the [old assignments](htt
 
 
 ##### Details, Registration and First Meeting
-Registration on [StudOn](https://www.studon.fau.de/studon/goto.php?target=crs_4622698).
+Registration for winter semester 2022/2023 on [StudOn](https://www.studon.fau.de/studon/goto.php?target=crs_4622698).
 The number of participants is limited to 50.
 We will start accepting people around the start of the lecture time.