Linking Category Blog Intro Image to Full Article

Hello

I'm using Joomla 3.3.1 and T3 Bs3 Blank 2.1.4.
Reference URL:
http://www.solidrockdaycamp.com/joomla3/index.php/day-camp/media-gallery

This URL is a category blog displaying the titles and intro images for individual articles. I'm trying to get the intro images to be links to the articles.

I've researched various solutions. I tried overriding components/com_content/views/category/tmpl/blog_item.php
LINE 39:
item); ?>

templates/t3_bs3_blank/html/com_content/category/blog_item.php
TO:
item->slug, $this->item->catid)); ?>

item); ?>


This actually works, but blows up the responsive styling for the blog layout. I'm thinking I'm overriding the wrong file?
Has anyone else come across this situation?

Thanks in advance.
Pat