docs: update index.md

Maya Shavin · Maya Shavin · commit 753bc7c2efce · 2020-12-17T09:58:29.000+02:00
diff --git a/docs/url-docs/content/en/index.md b/docs/url-docs/content/en/index.md
@@ -11,6 +11,9 @@ features:
   - TypeScript supported
 ---
 
+<img src="/preview.png" class="light-img">
+<img src="/preview.png" class="dark-img">
+
 The lighter [Cloudinary](https://cloudinary.com/) URL builder for images and videos, written in TypeScript.
 
 ## What is Cloudinary?
