Update src/content/docs/ai-search/usage/rest-api.mdx

Co-authored-by: Pedro Sousa <680496+pedrosousa@users.noreply.github.com>

Author: aninibread

src/content/docs/ai-search/usage/rest-api.mdx

@@ -117,7 +117,7 @@ You can get your `ACCOUNT_ID` by navigating to Workers & Pages on the dashboard,
 
 <Render file="search-response" product="ai-search" />
 
-## Related
+## Related resources
 
 <LinkCard
 	title="Instances API"