fix port number

README.md

@@ -52,7 +52,7 @@ $server = new \Yggverse\Nex\Server;
 Provide optional `host`, `port` and `size` arguments in constructor or use available setters after object initiation.
 
 ``` php
-$server = new \Yggverse\Nex\Server('127.0.0.1', 1915);
+$server = new \Yggverse\Nex\Server('127.0.0.1', 1900);
 ```
 
 #### Server::setHost

src/Server.php

@@ -11,7 +11,7 @@ class Server
 
     public function __construct(
         string $host = '127.0.0.1',
-        int    $port = 1915,
+        int    $port = 1900,
         int    $size = 1024,
         bool   $live = true
     ) {