def string_to_dict(term_list):
    """Adds term_list as strings to a dictionnary. Saves
    term string as lower case since config file keys are
    automatically converted to lower case.

    Args:
        term_list  (list) : Variant record terms list

    Return:
        dict:  Empty or keys as strings
    """
    term_dict = {}  # Create term dict

    for term in term_list:

        if term is not None:

            term_dict[str(term).lower()] = str(term.lower())
    return term_dict