Update README.md

johnA1331 · web-flow · commit 79f48a148fd2 · 2020-05-05T17:16:27.000+08:00
diff --git a/core-groovy/README.md b/core-groovy/README.md
@@ -12,4 +12,5 @@ This module contains articles about core Groovy concepts
 - [Closures in Groovy](https://www.baeldung.com/groovy-closures)
 - [Converting a String to a Date in Groovy](https://www.baeldung.com/groovy-string-to-date)
 - [Guide to I/O in Groovy](https://www.baeldung.com/groovy-io)
-- [[More -->]](/core-groovy-2)
+- [Convert String to Integer in Groovy](https://www.baeldung.com/groovy-convert-string-to-integer)
+- [[More -->]](/core-groovy-2)
