Singly Linked List
Challenge
The challenge about create a linked list using a node constructor and to insert a head value and search for value using include method, finlally you can print out linked list contet using toString method
Whiteboard Process

Approach & Efficiency
Time flexability and space flexibality
API
- insert: insert a value into the linked list
- include: will search for value and return true or false depending on its existance
- ToString: will return the contec of the linked list as a string in specific form