Missing dep

[cheginit]

I installed the package using pip in a new env and ran the example given in the README.

First, I got an error that pandas is not installed. It seems that pandas is a hard dep, but it's included as an optional dep in pyproject.toml. Then, I installed pandas, ran the README example (with and without quotes) and got this error:

$ datahugger 10.5061/dryad.mj8m0 data1  
Error: 'stash:file-download'

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	https://github.com/J535D165/datahugger/issues/new/choose