Update 04-the-pilet-api.md

[thegreedychoice]

The object params are missing for items unlike the id, and so the code won't compile

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[FlorianRappl]

Great catch!

[FlorianRappl]

Can you please sign the CLA @thegreedychoice ? Thanks!

[FlorianRappl]

Ping @thegreedychoice