Update week1.do.txt

Author: mhjensen

doc/src/week1/week1.do.txt

@@ -10,6 +10,7 @@ DATE: January 23, 2025
   o Discussion of possible projects and presentation of participants
   o Deep learning methods, mathematics and  review of neural networks
   o "Video of lecture to be posted after lecture":"https://youtu.be/"
+  o Test your background knowledge (to be added later)
 !eblock