update public

public/content/exercises/homework01.ipynb

public/content/exercises/homework01.pdf

public/content/exercises/homework02.html

public/content/exercises/homework02.ipynb

public/content/exercises/homework02.pdf

public/content/exercises/homework03.ipynb

public/content/exercises/homework03.pdf

public/content/exercises/homework04.ipynb

public/content/exercises/homework04.pdf

public/content/exercises/homework05.ipynb

public/content/exercises/homework05.pdf

public/content/exercises/homework06.ipynb

public/content/exercises/homework06.pdf

public/content/exercises/homework_template.ipynb

public/content/exercises/homework_template.pdf

public/content/exercises/index.html

public/content/resources/index-student.html

public/index.html

public/search.json