Update week9.do.txt

Author: mhjensen

doc/src/week9/week9.do.txt

@@ -8,8 +8,8 @@ DATE: March 20, 2025
 !bblock
 o Discussion of Autoencoders (AEs) and reminder from last week
 o Links between Principal Component Analysis (PCA) and AE
-#o "Video of Lecture":"https://youtu.be/PU_8riCscQg"
-#o "Whiteboard notes":"https://github.com/CompPhysics/AdvancedMachineLearning/blob/main/doc/HandwrittenNotes/2024/NotesMarch12.pdf"
+o "Video of Lecture":""
+o "Whiteboard notes":"https://github.com/CompPhysics/AdvancedMachineLearning/blob/main/doc/HandwrittenNotes/2025/NotesMarch20.pdf"
 !eblock