def make_keyword_html(keywords):
    """This function makes a section of HTML code for a list of keywords.

    Args:
        keywords: A list of strings where each string is a keyword.

    Returns:
        A string containing HTML code for displaying keywords, for example:

        '<strong>Ausgangsw&ouml;rter:</strong> Nature, Plants, Fauna'
    """
    res_html = '<strong>Ausgangsw&ouml;rter:</strong> '
    for word in keywords[:-1]:
        res_html += word + ', '
    res_html += keywords[-1]
    return res_html