Update README.md

Author: tridibsamanta

README.md

@@ -11,4 +11,5 @@
 | Priority Queue         | [View Code](https://github.com/tridibsamanta/Learn-Java-Collections-Framework/blob/main/PriorityQueue_Learn.java)   |
 | Deque                  | [View Code](https://github.com/tridibsamanta/Learn-Java-Collections-Framework/blob/main/Deque_Learn.java)           |
 | Set (HashSet)          | [View Code](https://github.com/tridibsamanta/Learn-Java-Collections-Framework/blob/main/HashSet_Learn.java)         |
+| Set (LinkedHashSet)    | [View Code](https://github.com/tridibsamanta/Learn-Java-Collections-Framework/blob/main/LinkedHashSet_Learn.java)   |