Merge pull request eugenp#7263 from eugenp/lor6-patch-9

Update README.md

Author: lor6

libraries-2/README.md

@@ -5,5 +5,6 @@
 - [Guide to Classgraph Library](https://www.baeldung.com/classgraph)
 - [Create a Java Command Line Program with Picocli](https://www.baeldung.com/java-picocli-create-command-line-program)
 - [Guide to Java Parallel Collectors Library](https://www.baeldung.com/java-parallel-collectors)
+- [Templating with Handlebars](https://www.baeldung.com/handlebars)
 - [A Guide to Crawler4j](https://www.baeldung.com/crawler4j)
 - [Decode an OkHttp JSON Response](https://www.baeldung.com/okhttp-json-response)