Include acknowledgment in README

[gcanasherrera]

It would be nice to include the logos of the affiliations of the cloe-maintainers (or to cite any grant our employers/us may have)

[gcanasherrera]

@cloe-org/cloe-maintainers feelings? If so, modify the description to include your logo/affiliation so we can update

[gcanasherrera]

@cloe-org/cloe-maintainers could you include your logos below? I'll make sure this happens now that I will need to add Leiden Observatory.

[chiaramoretti]

Hi @gcanasherrera here's mine

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