Remove old link

week1/01-example.md

@@ -213,4 +213,4 @@ Inside this file, you can type any line of code you would type in the REPL. To r
 
 ## Part 5: Submitting your Solution
 
-[Click here to learn how to submit your assignment.](https://lampepfl-courses.github.io/moocs/submission/submission.html)
+[Click here to learn how to submit your assignment.](todo)