def print_footnotes(outputfile):
    """Add footnotes to the output file.
    
    Args:
        outputfile (file): The file to which the footnotes will be written.
    """
    outputfile.write(
        """Footnotes:

STATISTICS Section Legend:
N: Number of residues
Min: Minimum B-factor value
Max: Maximum B-factor value
Mean: Mean B-factor value
Mode: Mode B-factor value
Median: Median B-factor value
STDDev: Standard Deviation of the B-factor values
"""
        )
    outputfile.write(
        """
RMSF Plane Visualization:
Download plane.py file from https://pymolwiki.org/index.php/Plane_Wizard and place it in the PyMol working directory if the RMSF plane needs to be visualized.
"""
        )
    return True
