Update README.md

Author: JawadSher

14 - Linked List Data Structure Problems/README.md

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+<h1 align='center'>LINKED LIST - DATA - STRUCTURE - PROBLEMS</h1>
 
+<p align='center'>
+Welcome to the 'Linked List Problems' repository! This repository contains a collection of problems that focus on **Linked List** data structures. Linked Lists are a fundamental data structure, essential for understanding memory management and creating efficient data structures like stacks, queues, and others.
+</p>
+
+## About Linked Lists
+
+A Linked List is a linear data structure where elements (nodes) are stored in non-contiguous memory locations. Each node contains data and a reference (link) to the next node in the sequence. There are different types of Linked Lists, such as:
+
+- **Singly Linked List**: Each node points to the next node in the sequence.
+- **Doubly Linked List**: Each node has two references: one pointing to the next node and one pointing to the previous node.
+- **Circular Linked List**: A type of linked list where the last node points back to the first node.
+
+This repository includes various challenges involving Linked List operations, such as:
+
+- Insertion and Deletion operations
+- Reversal of Linked Lists
+- Detecting cycles
+- Merging two linked lists
+- Finding the middle element
+- And more!
+
+Each problem in this repository is designed to help you understand Linked Lists in depth. Whether you're just starting to learn about Linked Lists or looking to sharpen your problem-solving skills, this collection will assist you in mastering this important data structure.
+
+## Problem List
+
+Here you will find a list of problems organized by type of Linked List. For each problem, you'll find a description and a link to the corresponding folder in this repository.
+
+Start solving and exploring to get hands-on experience with Linked Lists and improve your coding skills!
+
+### Repository Content
+| No  | Problem Name                               | Description                                                      |
+|-----|--------------------------------------------|------------------------------------------------------------------|
+| 01  | [Singly Linked List Problems](https://github.com/JawadSher/DSA-LeetCode-GFG-Problems-Repository/tree/main/14%20-%20Linked%20List%20Data%20Structure%20Problems/01%20-%20Singly%20Linked%20List%20Problems)| Problems related to operations on Singly Linked Lists.            |
+| 02  | [Doubly Linked List Problems](https://github.com/JawadSher/DSA-LeetCode-GFG-Problems-Repository/tree/main/14%20-%20Linked%20List%20Data%20Structure%20Problems/02%20-%20Doubly%20Linked%20List%20Problems) | Problems involving Doubly Linked Lists with forward and backward pointers.  |
+| 03  |[Circular Singly Linked List Problems](https://github.com/JawadSher/DSA-LeetCode-GFG-Problems-Repository/tree/main/14%20-%20Linked%20List%20Data%20Structure%20Problems/03%20-%20Circular%20Singly%20Linked%20List%20Problems)  | Problems involving Circular Singly Linked Lists, where the last node points back to the first node.  |
+
+Feel free to adjust the introduction based on specific details you would like to add about the repository.
+
+---
+Happy Coding 😊