fix(doc): update config name following update

[eMerzh]

since 4e68155d732b the custom scalar config has changed,
so let's update the doc

[facebook-github-bot]

@alunyov has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

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@monicatang has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[tobias-tengler]

@alunyov Maybe it would also be helpful to update the Release notes with the new name in camelCase customScalarTypes. In my PR I only mentioned the Rust variable names, but for the developer those fields are customScalars and customScalarTypes and not custom_scalars and custom_scalar_types.

[alunyov]

@alunyov Maybe it would also be helpful to update the Release notes with the new name in camelCase customScalarTypes. In my PR I only mentioned the Rust variable names, but for the developer those fields are customScalars and customScalarTypes and not custom_scalars and custom_scalar_types.

Done!

[facebook-github-bot]

@monicatang merged this pull request in 615c2d2.