A popover can be a useful way to add a somewhat-verbose explanation to a tag.

bs_embed_popover(tag, title = NULL, content = NULL, placement = "top",
...)

use_bs_popover()

## Arguments

tag htmltools::tag, generally 

## Value

htmltools::tag, modified copy of tag

## Details

To activate the use of popovers in your page, you will need to call the use_bs_popover() function somewhere.

The verb embed is used to signify that you are embedding information into a tag. This implies that you can embed, at most, one "thing" into a particular tag. You should not, for example, expect to embed both a tooltip and a popover into a tag.

bs_embed_tooltip, http://getbootstrap.com/javascript/#popovers
library("htmltools")
bs_embed_popover(title = "I'm a popover", content = "Really!")#> <button type="button" class="btn btn-default" title="I&#39;m a popover" data-toggle="popover" data-content="Really!" data-placement="top">A button</button>`