[Style guide] Fix typo (#19569)

Author: vil02

src/content/docs/style-guide/documentation-content-strategy/file-conventions.mdx

@@ -26,7 +26,7 @@ Filenames should:
 /src/assets/images/api-shield/API_Image_1.png
 ```
 
-These conventions are important for user readibility, SEO conventions, and making sure our GitHub actions do not break.
+These conventions are important for user readability, SEO conventions, and making sure our GitHub actions do not break.
 
 ## Folders