Adding memo

[RoyalTS]

Checklist

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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/memo) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipes/memo:

• noarch: python recipes are recommended to have a lower bound on the python version. This recommendation will become a requirement in the future.

[RoyalTS]

@koaning, can you please confirm you're willing to be listed as a maintainer?

[koaning]

Sure!

[koaning]

My name is Vincent and I confirm that I am a maintainer.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/memo) and found it was in an excellent condition.