Expand README by adding additional sample calls

[josejulio]

• Additional data will depend on how the service was started

PR Template:

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Ticket reference (if applicable)

Fixes #

Checklist

• Are the agreed upon acceptance criteria fulfilled?

• Was the 4-eye-principle applied? (async PR review, pairing, ensembling)

• Do your changes have passing automated tests and sufficient observability?

• Are the work steps you introduced repeatable by others, either through automation or documentation?

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• For changes to the public API / code dependencies: Was the whole team (or a sufficient amount of ppl) able to review?

[csams]

lgtm, thanks!