docs: fix broken links

[Meschreiber]

Update links

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Latest commit: 398d595

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Configuration

{
  "repoOverrides": {
    "apollographql/federation@main": {
      "remote": {
        "owner": "apollographql",
        "repo": "federation",
        "branch": "ms/fix-broken-links"
      }
    }
  }
}

Name	Link
Commit	398d595
Preview	https://www.apollographql.com/docs/deploy-preview/50b1df52a5ee8cc7e73d
Build ID	50b1df52a5ee8cc7e73d
File Changes	0 new, 5 changed, 0 removed * graphos/reference/federation/versions.mdx * graphos/reference/federation/directives.mdx * graphos/reference/federation/query-plans.mdx * graphos/schema-design/federated-schemas/entities/contribute-fields.mdx * graphos/schema-design/guides/handling-n-plus-one.mdx
Pages	5

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