Update week6.do.txt

Author: mhjensen

doc/src/week6/week6.do.txt

@@ -8,8 +8,8 @@ DATE: February 26, 2026
 !bblock
 o Intro to and mathematics of  Recurrent Neural Networks (RNNs)
 #o More material will be added
-#o "Video of lecture":"https://youtu.be/OCJi2Kgw8Rw"
-#o "Whiteboard notes":"https://github.com/CompPhysics/AdvancedMachineLearning/blob/main/doc/HandwrittenNotes/2025/NotesFebruary27.pdf"
+#o "Video of lecture":""
+#o "Whiteboard notes":"https://github.com/CompPhysics/AdvancedMachineLearning/blob/main/doc/HandwrittenNotes/2026/Lectureweek6.pdf"
 !eblock
 
 !split