Update README.md

lor6 · web-flow · commit 13e4081fc7a2 · 2019-01-02T22:53:54.000+02:00
diff --git a/java-collections-maps/README.md b/java-collections-maps/README.md
@@ -17,3 +17,4 @@
 - [Finding the Highest Value in a Java Map](https://www.baeldung.com/java-find-map-max)
 - [Merging Two Maps with Java 8](https://www.baeldung.com/java-merge-maps)
 - [How to Check If a Key Exists in a Map](https://www.baeldung.com/java-map-key-exists)
+- [Comparing Two HashMaps in Java](https://www.baeldung.com/java-compare-hashmaps)
