Update README.md

Author: johnA1331

java-collections-conversions-2/README.md

@@ -8,4 +8,5 @@ This module contains articles about conversions among Collection types and array
 - [Mapping Lists with ModelMapper](https://www.baeldung.com/java-modelmapper-lists)
 - [Converting List to Map With a Custom Supplier](https://www.baeldung.com/list-to-map-supplier)
 - [Arrays.asList vs new ArrayList(Arrays.asList())](https://www.baeldung.com/java-arrays-aslist-vs-new-arraylist)
+- [Iterate Over a Set in Java](https://www.baeldung.com/java-iterate-set)
 - More articles: [[<-- prev]](../java-collections-conversions)