diff --git a/java-collections-maps-3/README.md b/java-collections-maps-3/README.md
new file mode 100644
index 0000000000..4da8547824
--- /dev/null
+++ b/java-collections-maps-3/README.md
@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [Java Map With Case-Insensitive Keys](https://www.baeldung.com/java-map-with-case-insensitive-keys)