Update wording (#855)

* Update wording

* Update drop-shadow.mdx

Co-authored-by: Adam Wathan <adam.wathan@gmail.com>

Author: cavellblood

src/pages/docs/drop-shadow.mdx

@@ -24,7 +24,7 @@ export const classes = {
 
 ## Usage
 
-Use the `drop-shadow-{amount}` utilities alongside the `filter` utility to blur an element.
+Use the `drop-shadow-{amount}` utilities alongside the `filter` utility to add a drop shadow to an element.
 
 ```html
 <div class="filter drop-shadow-lg ...">