From fc7e43c73c0182c836b048fed5815d517f371092 Mon Sep 17 00:00:00 2001
From: johnA1331 <53036378+johnA1331@users.noreply.github.com>
Date: Tue, 15 Oct 2019 16:15:09 +0800
Subject: [PATCH] Update README.md

---
 core-groovy-2/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core-groovy-2/README.md b/core-groovy-2/README.md
index f1984f18f4..95a00a1f5b 100644
--- a/core-groovy-2/README.md
+++ b/core-groovy-2/README.md
@@ -12,4 +12,5 @@ This module contains articles about core Groovy concepts
 - [Concatenate Strings with Groovy](https://www.baeldung.com/groovy-concatenate-strings)
 - [Metaprogramming in Groovy](https://www.baeldung.com/groovy-metaprogramming)
 - [A Quick Guide to Working with Web Services in Groovy](https://www.baeldung.com/groovy-web-services)
+- [Categories in Groovy](https://www.baeldung.com/groovy-categories)
 - [[<-- Prev]](/core-groovy)