Update README.md

Author: jaycee0610

README.md

@@ -2,18 +2,131 @@
 ![Logo](https://repository-images.githubusercontent.com/793146864/6fb1ef96-255c-4946-bd88-3b26e7c17e3d)
 
 
-# Android SMS Gateway (PHP API Samples)
+# Android SMS Gateway (PHP)
 
 Android SMS Gateway transforms your Android smartphone into an SMS gateway. It is a lightweight application that enables you to send SMS messages programmatically via an API, making it ideal for integrating SMS functionality into your applications or services.
 
 
-https://sms.rootscratch.com/
-## Features
 
-- Send (Single / Bulk) Messages
-- Receive Messages (SMS)
-- Send / Get USSD Requests
-- Manage Contacts
+
+## Installation
+
+To install the rootscratch/sms via Composer, run the following command:
+
+```bash
+ composer require rootscratch/sms
+```
+    
+## Usage/Examples
+To use the Rootscratch SMS in your PHP project, include the Composer autoloader:
+
+
+```php
+require_once __DIR__ . '/vendor/autoload.php';
+use Rootscratch\SMS\Configuration;
+$configuration = new Configuration();
+// Set API Key
+Configuration::setApiKey('your_api_key');
+```
+
+## Send Single SMS
+```php
+use Rootscratch\SMS\Send;
+$sendMessage = new Send();
+$send_single = $sendMessage->sendSingleMessage('mobile_number', 'Message');
+echo json_encode($send_single, JSON_PRETTY_PRINT);
+```
+
+## Send Bulk Message
+```php
+$send_bulk = $sendMessage->sendMessages([
+    [
+        "number" => "6391234567890",
+        "message" => "Message 1"
+    ],
+    [
+        "number" => "6391234567891",
+        "message" => "Message 2"
+    ]
+]);
+echo json_encode($send_bulk, JSON_PRETTY_PRINT);
+```
+
+## Send MMS Sample
+
+- Use All Sims = sendMessages(messages = array, option = USE_ALL_SIMS)
+- Use All Devices = sendMessages(messages = array, option = USE_ALL_DEVICES)
+- Use Specified Devices = sendMessages(messages = array, option = USE_SPECIFIED, devices = array)
+
+```php
+/**
+ * Send MMS Sample
+ * Use All Sims = sendMessages(messages = array, option = USE_ALL_SIMS)
+ * Use All Devices = sendMessages(messages = array, option = USE_ALL_DEVICES)
+ * Use Specified Devices = sendMessages(messages = array, option = USE_SPECIFIED, devices = array)
+ */
+
+$send_bulk_mms = $sendMessage->sendMessages([
+    [
+        "number" => "639123456789",
+        "message" => "Test 1",
+        "type" => "mms",
+        "attachments" => 'https://sample.com/1.png'
+    ],
+    [
+        "number" => "639123456789",
+        "message" => "Test 2",
+        "type" => "mms",
+        "attachments" => 'https://sample.com/1.png'
+    ]
+]);
+echo json_encode($send_bulk_mms, JSON_PRETTY_PRINT);
+```
+
+## Send Message To Contacts List
+Send a message on schedule to contacts in contacts list with ID of 1.
+
+- Send a message on schedule to contacts in contacts list with ID of 1.
+sendMessageToContactsList(1, "Test", null, null, strtotime("+2 minutes"));
+
+```php
+$send_contact_list = $sendMessage->sendMessageToContactsList(1, 'Via Contact List!', Configuration::USE_SPECIFIED, [4]);
+echo json_encode($send_contact_list, JSON_PRETTY_PRINT);
+```
+
+## Send USSD Request
+Send a USSD request using default SIM of Device ID 1.
+
+```php
+$send_ussd = $sendMessage->sendUssdRequest('*150#', 1);
+echo json_encode($send_ussd, JSON_PRETTY_PRINT);
+```
+Send a USSD request using SIM in slot 1 of Device ID 1
+```php
+$send_ussd = $sendMessage->sendUssdRequest('*150#', 1, 0);
+echo json_encode($send_ussd, JSON_PRETTY_PRINT);
+```
+Send a USSD request using SIM in slot 2 of Device ID 1.
+```php
+$send_ussd = $sendMessage->sendUssdRequest('*150#', 1, 1);
+echo json_encode($send_ussd, JSON_PRETTY_PRINT);
+```
+
+## Resend SMS
+```php
+/**
+ * Resend SMS Sample
+ * Resend Message By ID = resendMessageByID(id = int)
+ * Resend Messages By Group ID = resendMessagesByGroupID(group_id = string, status = string)
+ */
+
+use Rootscratch\SMS\Resend;
+
+$resend = new Resend();
+
+$resend_by_id = $resend->resendMessagesByGroupID('MZ7QabWteHWfSkjkgX67acc67bcc2048.73874662', 'Failed');
+echo json_encode($resend_by_id, JSON_PRETTY_PRINT);
+```
 
 
 ## Support