def AddTitle(L, N, color, font_family, sample, renderer):
    """
    (list, int, str, str, str, mistune.Markdown) -> None
    
    :param L: List with report strings
    :param N: Number of empty lines following title    
    :param color: Color of the title text
    :param font_family: Comma-separated text fonts
    :param sample: Sample name to appear in title
    :param renderer: markdown renderer
    
    Add title to list L
    """
    L.append(renderer(
        '<font size=7><p style="text-align: center; color: {0}; font-family: {1}; font-weight:bold">Report for {2}</p></font>'
        .format(color, font_family, sample)))
    L.append(renderer('<pre> </pre>' * N))
