[Documentation][ValueResolvers] add example Value Resolvers

[dylan-b-efficience-it]

I observed that the documentation lacked references and examples to elucidate the various types of value resolvers.

[javiereguiluz]

Thanks for this proposal.

The problem with adding these examples is that we need to reformat the original docs. Why? Becuase they are displayed as a short list of items. If we add examples, the list is going to be very long and it will look bad when rendered.

So, asking to Symfony Doc maintainers (@OskarStark, @wouterj and @xabbuh): do you think we should refactor this list into a series of small h3 or h4 section per resolver to add an example ... or maybe we could just not include these examples? Thanks!

[dylan-b-efficience-it]

I understand. Would you like me to reduce the examples, just indicating the route and the function name? Example :

#[Route('/exemple/{$donneesProduit}')]
public function afficherProduit(string $donneesProduit): Response
{
    // ...
}

Or would you rather wait for Symfony Doc maintainers opinion?

[OskarStark]

I like having examples 👍

[dylan-b-efficience-it]

Hi ! @OskarStark .

I'd like to know whether I should keep the original proposal or make some changes to the examples, as indicated in my previous message.