Update README.md

rcalago · web-flow · commit 9a513cbe156c · 2024-04-23T16:07:30.000+08:00
diff --git a/libraries-io/README.md b/libraries-io/README.md
@@ -5,3 +5,4 @@
 - [How to Create Password-Protected Zip Files and Unzip Them in Java](https://www.baeldung.com/java-password-protected-zip-unzip)
 - [How to Create CSV File from POJO with Custom Column Headers and Positions](https://www.baeldung.com/java-create-csv-pojo-customize-columns)
 - [Delete a Directory Recursively in Java](https://www.baeldung.com/java-delete-directory)
+- [Introduction to Simple Java Mail](https://www.baeldung.com/java-sjm-email)
