Change namespace to Sarhan\Flatten

Author: AlaaSarhan

composer.json

@@ -13,7 +13,7 @@
     ],
     "autoload": {
         "psr-4": {
-            "Sarhan\\": "./src/"
+            "Sarhan\\Flatten\\": "./src/"
         }
     },
     "minimum-stability": "stable",

src/Flatten.php

@@ -1,5 +1,6 @@
 <?php
-namespace Sarhan;
+
+namespace Sarhan\Flatten;
 
 /**
  * @author Alaa Sarhan <sarhan.alaa@gmail.com>

test/FlattenTest.php

@@ -1,7 +1,7 @@
 <?php
 
 use PHPUnit\Framework\TestCase;
-use Sarhan\Flatten;
+use Sarhan\Flatten\Flatten;
 
 class FlattenTest extends TestCase
 {