docs: update bundle size

Author: danpacho

packages/web/content/docs/index.mdx

@@ -73,11 +73,11 @@ timeline.play(targetElement, {
 })
 ```
 
-## 6x Smaller Bundle Size, but Powerful.
+## 5x Smaller Bundle Size, but Powerful.
 
 It is also much smaller compared to other animation libraries.
 
-- `ani` = [**4.8kB**](https://bundlephobia.com/package/@freestylejs/ani-core)
+- `ani` = [**5.6kB**](https://bundlephobia.com/package/@freestylejs/ani-core)
 - `motion` = 31.1kB
 - `anime.js` = 30.8kB
 - `gsap` = 26.6kB