diff --git a/doc/HandWrittenNotes/2021/NotesSeptermber2.pdf b/doc/HandWrittenNotes/2021/NotesSeptermber2.pdf
new file mode 100644
index 000000000..90af7e355
Binary files /dev/null and b/doc/HandWrittenNotes/2021/NotesSeptermber2.pdf differ
diff --git a/doc/pub/week34/ipynb/ipynb-week34-src.tar.gz b/doc/pub/week34/ipynb/ipynb-week34-src.tar.gz
index 7a6beadc7..ff964c767 100644
Binary files a/doc/pub/week34/ipynb/ipynb-week34-src.tar.gz and b/doc/pub/week34/ipynb/ipynb-week34-src.tar.gz differ