The only part of this code hat should be updated is the src=.
See example below:
SmugMug Embed
<div class="embed-responsive embed-responsive-4by3"></div>
YouTube Embed
<div class="embed-responsive embed-responsive-16by9" style="margin-bottom: 1rem;"></div>
Institutional Research
News Images
For additional images used in the story body, add the following to the img tag in the code editor:
class="responsive" style="float: right; padding: 10px;"
You can also change the float to left depending on the overall story layout.