Update week42.do.txt

Author: mhjensen

doc/src/week42/week42.do.txt

@@ -12,8 +12,8 @@ o Project 2 is available at URL:"https://github.com/CompPhysics/MachineLearning/
 ===== Readings and videos  =====
 !bblock 
 o These lecture notes
-#o "Video of lecture":"https://youtu.be/7B2F35gNj2Y"
-#o "Whiteboard notes":"https://github.com/CompPhysics/MachineLearning/blob/master/doc/HandWrittenNotes/2024/NotesOct14.pdf"
+o Video of lecture at URL:""
+o Whiteboard notes at URL:"https://github.com/CompPhysics/MachineLearning/blob/master/doc/HandWrittenNotes/2025/FYSSTKweek42.pdf"
 o For a more in depth discussion on  neural networks we recommend Goodfellow et al chapters 6 and 7. For the optimization part, see chapter 8.    
 o Neural Networks demystified at URL:"https://www.youtube.com/watch?v=bxe2T-V8XRs&list=PLiaHhY2iBX9hdHaRr6b7XevZtgZRa1PoU&ab_channel=WelchLabs"
 o Building Neural Networks from scratch at URL:"https://www.youtube.com/watch?v=Wo5dMEP_BbI&list=PLQVvvaa0QuDcjD5BAw2DxE6OF2tius3V3&ab_channel=sentdex"