merge: Add test case to jump search Algorithm (#1041)

* Add test case to jump search Algorithm

* Updated Documentation in README.md

* Remove commented code

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Data-Structures/Linked-List/SinglyLinkedList.js

@@ -77,7 +77,6 @@ class LinkedList {
       this.headNode = this.headNode.next
       this.length--
     }
-    console.log(removedNode.data)
     return removedNode?.data
   }