`resolveAlias` missing from `graphile-build/look-ahead/#when-initially-defining-the-object-fields`

https://www.graphile.org/graphile-build/look-ahead/#when-initially-defining-the-object-fields

Where does `resolveAlias` come from?

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https://www.graphile.org/graphile-build/look-ahead/#seeing-which-sub-fields-were-requested

> This 4th argument is the one we're interested in because it contains a number of goodies.

Perhaps show an example of what `resolveInfo` is. Maybe like "here is resolveInfo and here is parseResolveInfo(resolveInfo)".

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I would also move https://www.graphile.org/graphile-build/#quick-to-start to the top.

Read the linked look-ahead sections and the Quick to Start page first. Clarify where resolveAlias comes from, add a concrete resolveInfo and parseResolveInfo(resolveInfo) example, and move Quick to Start to the top; the linked documentation should then answer these questions directly.

Written by the indexing model from the issue text.