creatibutors: added edmo to the list of identifiers

[0einstein0]

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Description

Fixes Issue inveniosoftware/invenio-vocabularies#433

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[slint]

Suggested change

	"url_prefix": "http://orcid.org/",
	"url_prefix": "https://orcid.org/",

shelve: although I think we need see how we can maybe take advantage of the existing data to get the URL, and avoid Jinja shenanigans