RFR: Add guide section about array types [v2]

[Jorn Vernee]

On Tue, 16 Apr 2024 16:45:25 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> The current guide is missing a section discussing the special handling of array types, for which jextract generates a `$dimensions()` accessor, and indexed getters and setters.
>> 
>> This PR adds a section to the guide discussing this. I've put it at the end of the "Using The Code Generated By Jextract" section. I've put it before the section on nested types though, since it's a little more important I think.
>
> Jorn Vernee has updated the pull request incrementally with three additional commits since the last revision:
> 
>  - review comments
>  - Update doc/GUIDE.md
>    
>    Co-authored-by: Maurizio Cimadamore <54672762+mcimadamore at users.noreply.github.com>
>  - Update doc/GUIDE.md
>    
>    Co-authored-by: Maurizio Cimadamore <54672762+mcimadamore at users.noreply.github.com>

I also noticed that the link to the samples is broken in the current text, so I've fixed this as well (https://github.com/openjdk/jextract/pull/236/commits/821cc45dcfc52282b80d4c13d69152b5722b1cc5)

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PR Comment: https://git.openjdk.org/jextract/pull/236#issuecomment-2059544801