add index

Author: HPWebdeveloper

README.md

@@ -14,13 +14,34 @@
 **Videos:**
 
 -   [Laravel Pay Pocket Package: Virtual Wallets in Your Project](https://www.youtube.com/watch?v=KoQyURiwsA4)
-
 -   [Laravel Exceptions: Why and How to Use? Practical Example.](https://www.youtube.com/watch?v=-Sr18w91v8Q)
-
 -   [PHP Enums in Laravel: Practical Example from Package](https://www.youtube.com/watch?v=iUOb-3HQtK8)
 
 **Note:** This package does not handle payments from payment platforms, but instead offers the concept of virtual money, deposit, and withdrawal.
 
+## 📚 Table of Contents
+
+- [Version Compatibility](#version-compatibility)
+- [Installation](#installation)
+- [Updating](#updating)
+- [Preparation](#preparation)
+  - [Prepare User Model](#prepare-user-model)
+  - [Prepare Wallets](#prepare-wallets)
+- [Usage, APIs and Operations](#usage-apis-and-operations)
+  - [Deposit](#deposit)
+  - [Pay](#pay)
+  - [Balance](#balance)
+  - [Exceptions](#exceptions)
+  - [Log](#log)
+- [Testing](#testing)
+- [Changelog](#changelog)
+- [Contributing](#contributing)
+- [Security Vulnerabilities](#security-vulnerabilities)
+- [Credits](#credits)
+- [License](#license)
+
+---
+
 -   **Author**: Hamed Panjeh
 -   **Vendor**: hpwebdeveloper
 -   **Package**: laravel-pay-pocket