title: How to add and apply breadcrumbs.phtml to child theme in Magento 2?
body: <p>I have a Magento 2 theme I'm using for the design, and have a child theme created that I'm working off of. I am trying to modify the breadcrumbs html so I can extend some additional classes to it. I can't find any breadcrumbs.phtml file in the parent theme, but I did find it in the vendor/magento/module-theme/view/frontend/template/html directory.</p>
  
  <p>My question becomes, how can I create a new breadcrumbs.phtml file for my new child theme and where do I add it to the xml so it will be reflected on the frontend?</p>