Create slideshow

How can i link images to create a gallery slideshow?

Currently i’m looping through my images and adding links:

 <a href="<?php echo $image['url']; ?>" rel="wp-video-lightbox">
                                    <img src="<?php echo $image['sizes']['medium']; ?>" alt="<?php echo $image['alt']; ?>" />
                                </a>

But they are just individual lightboxes, I can’t scroll through the images.

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