BSD 3-Clause License

Copyright (c) 2021, Mark Farragher
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This software uses the following open-source libraries:

Numpy
Project code: https://github.com/numpy/numpy
Copyright (c) 2005-2021, NumPy Developers
Licence (BSD): http://www.numpy.org/license.html

Pandas
Project code: https://github.com/pandas-dev/pandas
Copyright (c) 2008-2011, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team; 2011-2021, Open source contributors
Licence (BSD): https://pandas.pydata.org/pandas-docs/stable/getting_started/overview.html

Networkx
Project code: https://github.com/networkx/networkx
Copyright (c) 2004-2021, NetworkX Developers
Licence (BSD): https://github.com/networkx/networkx/blob/main/LICENSE.txt

markdown
Project code: https://python-markdown.github.io
Copyright (c) 2007, 2008 The Python Markdown Project (v. 1.7 and later)
Licence (BSD): https://github.com/Python-Markdown/markdown/blob/master/LICENSE.md

html2text
Project code: https://github.com/Alir3z4/html2text
Copyright (c) 2007, html2text developers (see https://github.com/Alir3z4/html2text/blob/master/AUTHORS.rst)
Licence (GPL 3): https://github.com/Alir3z4/html2text/blob/master/COPYING

pymdown-extensions
Project code: https://github.com/facelessuser/pymdown-extensions
Copyright (c) 2014-2022 Isaac Muse
Licence (MIT): https://github.com/facelessuser/pymdown-extensions/blob/main/LICENSE.md

python-frontmatter
Project code: https://github.com/eyeseast/python-frontmatter
Copyright (c) 2021 Chris Amico
Licence (MIT): https://github.com/eyeseast/python-frontmatter/blob/main/LICENSE

beautifulsoup4
Project code: https://www.crummy.com/software/BeautifulSoup
Copyright (c) 2004-2022 Leonard Richardson
Licence (MIT)

lxml
Project code: https://github.com/lxml/lxml
Copyright (c) 2004 Infrae
Licence (BSD): https://github.com/lxml/lxml/blob/master/doc/licenses/BSD.txt
