Fix image url

Make the CLI compatible with Windows OS (#43)

* Make compatible with Windows OS

Add tests for romaji tokens

Add tests for romaji tokens

Use API token for release

Use `build` instead of setup.py

Remove extraneous spaces

Add requirements.txt

This works but could probably be trimmed down or relaxed. However there
was nothing before, so it's a start.

Add support for previously unhandled cases

Add obscure katakana