updating DIRECTORY.md

Author: github-actions

DIRECTORY.md

@@ -36,6 +36,7 @@
  * Linked-List
  * [CycleDetection](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/CycleDetection.js)
  * [DoublyLinkedList](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/DoublyLinkedList.js)
+ * [SingleCircularLinkedList](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/SingleCircularLinkedList.js.js)
  * [SinglyLinkList](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/SinglyLinkList.js)
  * Queue
  * [Queue](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Queue/Queue.js)