To add on to Arun P Johny's solution, if you find that your tags in the data-content value are rendering as plain text in the popover content on the page, add the additional attribute data-html="true", like so:
content
Be aware that using data-html="true" does introduce a potential vulnerability to XSS attacks; don't use it with unsanitized user input.
Docs: https://getbootstrap.com/docs/3.3/javascript/#popovers-options