docs(installation): react-native physical device hint

[mateoguzmana]

I spent several hours thinking something was wrong with my setup – until I found out that the problem was the simulator.

I think it is good to mention this somewhere in the docs.

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[msriaz]

@mateoguzmana thanks for your comment, do you have any working example of android or ios? That will be helpful for many of us. Thank you so much.