Conform code to meet best practices

[dylanbmorgan]

Include the following:

• docs/conf.py
• docs/index.rst
• module/init.py
• module/core.py
• tests/core.py
• requirements.txt
• setup.py

And incorporate other practices as found in https://data-flair.training/blogs/python-best-practices/

Instead of quoting the name of script again at the top of the file, just give the title of the script.