After creating the child theme, in your child theme create the folder template-parts. Then again create the folder home within template-parts. Finally create the file testimonials.php inside home folder ie your structure should be like template-parts > home > testimonials.php. After paste below given code in testimonials.php file . https://gist.github.com/anonymous/a67f9ca49997af2381dae49e8c8146ca
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