Other
* Chore: add source tarball with requirements.txt at the root, for publishing to https://pypi.org/project/plantuml-markdown/#files. [Nick Boldt]
* Update README.md. [Mark Moretto]
Aiming to clear-up some of the installation instructions.
* Update plantuml_markdown.py. [Mark Moretto]
Updated `https://pythonhosted.org/..` URLs within file to `https://python-markdown.github.io/...`