Update README.md

README.md

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-# morse-code
+# Morse Code
+
 A simple PHP library for converting text to Morse code and vice versa
+
+## Installation
+
+This library can be easily installed using [Composer](https://getcomposer.org/), a modern PHP dependency manager.
+
+### Step 1: Install Composer
+
+If you don't have Composer installed, you can download and install it by following the instructions on the [official Composer website](https://getcomposer.org/download/).
+
+### Step 2: Install the Library
+
+Once Composer is installed, you can install the `morse-code` library by running the following command in your project's root directory:
+
+```bash
+composer require ramazancetinkaya/morse-code
+```
+
+## Usage
+
+```php
+require_once 'vendor/autoload.php'; // Include Composer's autoloader
+
+use ramazancetinkaya\MorseCode;
+```
+
+```php
+try {
+    $text = "Hello World";
+    $morse = MorseCode::textToMorse($text);
+    echo "Text to Morse: " . $morse . "\n";
+
+    $originalText = MorseCode::morseToText($morse);
+    echo "Morse to Text: " . $originalText . "\n";
+} catch (InvalidArgumentException $e) {
+    echo "Error: " . $e->getMessage() . "\n";
+}
+```