docs: remove fields filter warning

[jannyHou]

Update docs after fixing #4992

Checklist

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• npm test passes on your machine
• New tests added or existing tests modified to cover all changes
• Code conforms with the style guide
• API Documentation in code was updated
• Documentation in /docs/site was updated
• Affected artifact templates in packages/cli were updated
• Affected example projects in examples/* were updated

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[agnes512]

The example in L52-53:

/customers?filter[fields][id]=false&filter[fields][name]=true&filter[fields][address]=true

Or omit the name field:

/customers?filter[fields][name]=true&filter[fields][address]=true

[agnes512]

->
filter[fields][propertyName]=true|false&filter[fields][propertyName]=true|false

[jannyHou]

updated 👍

[jannyHou]

@agnes512 Thank you, I adjusted the content a bit, now it's:

Return customer information only with name and address, and hide their id:

await customerRepository.find({fields: {id: false, name: true, address: true}});

Or use stringified JSON format:
/orders?filter={"fields":{"name":true,"address":true,"id":false}}

Include all required properties:
/customers?filter[fields][name]=true&filter[fields][address]=true

Or omit the hidden property:
/customers?filter[fields][id]=false

[agnes512]

Nitpick:
Other filters have the stringified JSON format example after the REST examples.

[agnes512]

Btw this might not be correct if the model has properties other than id, name, and address.

[jannyHou]

@agnes512 I just realized there are 2 separate examples for include and exclude, re-wrote the content, ptal thanks!

[agnes512]

👍