I have a very basic github setup with a readme, a directory, and another directory inside it with an html file. On github I can only view the readme and the first folder but
WARNING! THIS WILL DELETE THE ENTIRE GIT HISTORY FOR YOUR SUBMODULE. ONLY DO THIS IF YOU CREATED THE SUBMODULE BY ACCIDENT. CERTAINLY NOT WHAT YOU WANT TO DO IN MOST CASES.
I think you have to go inside week1 folder and delete the .git folder:
sudo rm -Rf .git
then go back to top level folder and do:
git add .
then do a commit and push the code.