family->given for R Core authorship

[MichaelChirico]

This is the more typical and correct way to cite this contributor.

c.f.

a = tools::CRAN_authors_db()
sum(grepl("(?i)r core team", a$family))
# [1] 8
sum(grepl("(?i)r core team", a$given))
# [1] 61

From ?person:

For persons which are not natural persons (e.g., institutions, companies, etc.) it is appropriate to use given (but not family) for the name, e.g., person("R Core Team", role = "aut").

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