Update ai1sysproj.md

courses/ai1sysproj.md

@@ -21,6 +21,7 @@ Concretely, the project will consist of several problems, which you will work on
 Each problem will require a substantial amount of programming work - after all the project is worth 10 ECTS.
 This is the first iteration of the AI-1 Systems Project and we only recently started planning it.
 Therefore, a lot of things are not yet decided and we will update this website as we go along.
+To get an idea of the problems, you can take a look at the [old assignments](https://kwarc.info/teaching/AISysProj/).
 
 
 ##### Details, Registration and First Meeting