fix(corner-ornament): copy issue (#4063)

Author: krisantrobus

packages/paste-website/src/pages/components/corner-ornament/index.mdx

@@ -78,7 +78,7 @@ export const getStaticProps = async () => {
 
 ## Guidelines
 
-### About Combobox
+### About Corner Ornament
 
 Use the Corner Ornament to quickly relate an item count (usually notifications) or graphic element (like an [Icon](/components/icon) or [Avatar](/components/avatar)) to another element, called a base component.