From 2cc967c01c535e59b42cf7f939fa2eed7bab878f Mon Sep 17 00:00:00 2001
From: johnA1331 <53036378+johnA1331@users.noreply.github.com>
Date: Thu, 17 Sep 2020 00:09:56 +0800
Subject: [PATCH] Update README.md

---
 core-kotlin-modules/core-kotlin-collections-2/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core-kotlin-modules/core-kotlin-collections-2/README.md b/core-kotlin-modules/core-kotlin-collections-2/README.md
index 2dc180b5b3..64062ee704 100644
--- a/core-kotlin-modules/core-kotlin-collections-2/README.md
+++ b/core-kotlin-modules/core-kotlin-collections-2/README.md
@@ -2,6 +2,6 @@
 
 This module contains articles about core Kotlin collections.
 
-### Relevant articles:
-
+## Relevant articles:
 
+- [Aggregate Operations in Kotlin](https://www.baeldung.com/kotlin/aggregate-operations)