I'm leaving the below instructions here for now in case we want to add a gallery.

This page uses the Simple Image Gallery Plugin by JoomlaWorks. Adding image galleries inside your Joomla! articles is now super-easy and simple, using the magical "Simple Image Gallery" plugin for Joomla!. The plugin can turn any folder of images located inside your Joomla! website into a grid-style image gallery with cool lightbox previews. And all that using a simple plugin tag like {gallery}myphotos{/gallery}. Simply drop any new images in your folder via FTP or media manager. That's it!

Read Documentation

{gallery}demo{/gallery}