fix link in javadoc overview

Author: gavinking

shared/javadoc/overview.html

@@ -66,7 +66,7 @@ <h3>JPA</h3>
     <li>{@link jakarta.persistence.TypedQuery} to execute queries,</li>
     <li>{@link jakarta.persistence.EntityGraph} to control the boundaries of fetched data,</li>
     <li>{@link jakarta.persistence.EntityTransaction} to control local transactions,</li>
-    <li>{@link jakarta.persistence.Metamodel} to implement generic code which makes use of
+    <li>{@link jakarta.persistence.metamodel.Metamodel} to implement generic code which makes use of
         persistent entity classes in a reflective fashion, and</li>
     <li>{@link jakarta.persistence.criteria.CriteriaBuilder} to build JPA criteria queries.</li>
 </ul>