fixing skeleton typo

Author: Dillon Ching

apps/docs/src/content/docs/components/skeleton.mdx

@@ -1,6 +1,6 @@
 ---
 title: Skeleton
-description: Shows an skeleton component.
+description: Shows a skeleton component.
 ---
 
 {/* prettier-ignore-start */}
@@ -17,7 +17,7 @@ import importedCode from '@rnr/reusables/components/ui/skeleton?raw';
 
 <br />
 
-Shows an skeleton component.
+Shows a skeleton component.
 
 ## Installation