merge: rename SinglyLinkList to SinglyLinkedList (TheAlgorithms#881)

Author: maltejur

DIRECTORY.md

@@ -74,7 +74,7 @@
  * [DoublyLinkedList](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/DoublyLinkedList.js)
  * [RotateListRight](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/RotateListRight.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)
+ * [SinglyLinkedList](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Linked-List/SinglyLinkedList.js)
  * Queue
  * [CircularQueue](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Queue/CircularQueue.js)
  * [Queue](https://github.com/TheAlgorithms/Javascript/blob/master/Data-Structures/Queue/Queue.js)

Data-Structures/Linked-List/SinglyLinkList.js renamed to Data-Structures/Linked-List/SinglyLinkedList.js

@@ -1,6 +1,6 @@
-import { LinkedList } from '../SinglyLinkList'
+import { LinkedList } from '../SinglyLinkedList'
 
-describe('SinglyLinkList', () => {
+describe('SinglyLinkedList', () => {
  it('Check addLast', () => {
  const list = new LinkedList()
  expect(list.get()).toEqual([])