I am trying to deploy my app in githubPages, but it does not recover an image.

import reserva from './reserva.png';
... rest of the code
<img src={reserva} alt="Reservar" width="20"/>

in the asset manifest I have tried:

    "static/media/reserva.3fb678c1.png": "./static/media/reserva.3fb678c1.png"

But still doesn't work. The image is in the same folder than the component. Thank you!