Invalid SPDX license identifier in pypi metadata

[kenmalton]

In the pypi metadata the license is # MIT License where it should be MIT or MIT License.

https://pypi.org/project/choreographer/1.2.1/

It looks like the first line of the LICENSE.md file is being quoted verbatim.

I think the pyproject.toml should look as follows:

[project]
license = "MIT"
license-files = [ "LICENSE.md" ]

https://packaging.python.org/en/latest/specifications/pyproject-toml/#license

Thank you for your work maintaining this package!