docs: fix @ascorbic/loader-utils installation command (#101)

Author: HiDeoo

packages/utils/README.md

@@ -5,7 +5,7 @@ Utilities to help building Astro loaders
 ## Installation
 
 ```sh
-npm install @ascorbic/feed-utils astro@experimental--contentlayer
+npm install @ascorbic/loader-utils
 ```
 
 ## API