add bootstrap carousel code example
Example: carousel bootstrap
<div id="carouselExampleSlidesOnly" class="carousel slide" data-ride="carousel">
<div class="carousel-inner">
<div class="carousel-item active">
<img class="d-block w-100" src="..." alt="First slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="..." alt="Second slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="..." alt="Third slide">
</div>
</div>
</div>