Update README.md

charlesgonzales · web-flow · commit c50eb350517b · 2018-12-21T17:59:20.000+08:00
diff --git a/data-structures/README.md b/data-structures/README.md
@@ -1 +1,4 @@
 ## Relevant articles:
+
+[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)
