def list_br_html_addition(l):
    """
    # Replace the /n by the <br> HTML tag throughout the list
    :param l: The list
    :return: List
    """
    for sublist in l:
        for i in range(len(sublist)):
            if isinstance(sublist[i], str):
                sublist[i] = sublist[i].replace("\n", "<br>")
    return l