Removed duplicate entry from README
@@ -4,7 +4,6 @@ This module contains articles about Map data structures in Java.
### Relevant Articles:
- [Guide to the Guava BiMap](https://www.baeldung.com/guava-bimap)
-- [A Guide to Java HashMap](https://www.baeldung.com/java-hashmap)
- [A Guide to LinkedHashMap in Java](https://www.baeldung.com/java-linked-hashmap)
- [A Guide to TreeMap in Java](https://www.baeldung.com/java-treemap)
- [How to Store Duplicate Keys in a Map in Java?](https://www.baeldung.com/java-map-duplicate-keys)
