Add the jsDelivr badge.

README.md

@@ -10,6 +10,10 @@ Splide is a lightweight, flexible and accessible slider and carousel written in
 No dependencies, no Lighthouse errors.
 </p>
 
+<p>
+[![](https://data.jsdelivr.com/v1/package/npm/@splidejs/splide/badge)](https://www.jsdelivr.com/package/npm/@splidejs/splide)
+</p>
+
 <p>
   <a href="https://splidejs.com/guides/getting-started/">Getting Started</a>
   <br>