diff --git a/README.md b/README.md
index 64465d6..0e846c9 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 ## Features
 
-ArrayList can validate:
+[ArrayList](https://www.flowerbrackets.com/arraylist-in-java/) can validate:
 
 - Scalar types: `string`, `integer`, etc.: