Fix broken graphql-config links in README

[pleunv]

Noticed that the old links are now returning a 404, updated them to the correct pages. Scanned the rest of the repo for other instances of graphql-config hyperlinks but these appear to be the only ones.

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Latest commit: 98dcb16df35ca739db5935171eedd3ef5bcabbdb

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[acao]

Thank you, the path to this page changes every year, I wish they would just use 301 redirects 😅

[dimaMachina]

@acao we added redirects for these links so I just close this PR