Include `LICENSE` file in PyPI source

[Sugato Ray]

The PyPI source does not have any LICENSE file as of v0.0.5. Please add it.

You need to add a MENIFEST.in file and add the following line to it.

include LICENSE

Or, you could modify setup.py file as follows:

setup(
	...
	license_files=("LICENSE",),
	...
)

Anyone of those should fix this issue.

[Sugato Ray]

cc: @stephenleo

[Marie Stephen Leo]

Thank you for the finding and suggestion! pushed a new version that fixes this.