Update README.md

johnA1331 · web-flow · commit 1b5fc1aea106 · 2020-02-05T16:25:03.000+08:00
diff --git a/data-structures/README.md b/data-structures/README.md
@@ -7,3 +7,4 @@ This module contains articles about data structures in Java
 - [The Trie Data Structure in Java](https://www.baeldung.com/trie-java)
 - [Implementing a Binary Tree in Java](https://www.baeldung.com/java-binary-tree)
 - [Circular Linked List Java Implementation](https://www.baeldung.com/java-circular-linked-list)
+- [How to Print a Binary Tree Diagram](https://www.baeldung.com/java-print-binary-tree-diagram)
