Update index.html.twig

Based on my observatory of mirrors: https://github.com/Webysther/packagist-mirror#-packagist-public-metadata-mirrors-around-the-world

src/Packagist/WebBundle/Resources/views/mirrors/index.html.twig

@@ -12,13 +12,18 @@
 <p>Packagist currently provides mirrors in Europe, North America (Montreal), and Asia (Singapore).</p>
 <p>On top of this, we are aware of the following list of third-party-run mirrors, please refer to their website to see how to use them:</p>
 <ul>
-  <li>Africa, South Africa <a href="https://packagist.co.za/">packagist.co.za</a></li>
-  <li>Asia, China <a href="https://mirrors.aliyun.com/composer/">mirrors.aliyun.com/composer</a></li>
-  <li>Asia, China <a href="https://pkg.phpcomposer.com/">pkg.phpcomposer.com</a></li>
-  <li>Asia, Indonesia <a href="https://packagist.phpindonesia.id/">packagist.phpindonesia.id</a></li>
-  <li>Asia, India <a href="https://packagist.in/">packagist.in</a></li>
-  <li>Asia, Japan <a href="https://packagist.jp/">packagist.jp</a></li>
-  <li>South America, Brazil <a href="https://packagist.com.br/">packagist.com.br</a></li>
+  <li>Africa, South Africa <a href="https://packagist.co.za">packagist.co.za</a></li>
+  <li>Asia, China <a href="https://mirrors.huaweicloud.com/repository/php">mirrors.huaweicloud.com/repository/php</a></li>
+  <li>Asia, China <a href="https://mirrors.aliyun.com/composer">mirrors.aliyun.com/composer</a></li>
+  <li>Asia, China <a href="https://php.cnpkg.org">php.cnpkg.org</a></li>
+  <li>Asia, China <a href="https://packagist.phpcomposer.com">packagist.phpcomposer.com</a></li>
+  <li>Asia, China <a href="https://packagist.mirrors.sjtug.sjtu.edu.cn">packagist.mirrors.sjtug.sjtu.edu.cn</a></li>
+  <li>Asia, China <a href="https://mirrors.cloud.tencent.com/composer">mirrors.cloud.tencent.com/composer</a></li>
+  <li>Asia, India <a href="https://packagist.in">packagist.in</a></li>
+  <li>Asia, Indonesia <a href="https://packagist.phpindonesia.id">packagist.phpindonesia.id</a></li>
+  <li>Asia, Japan <a href="https://packagist.jp">packagist.jp</a></li>
+  <li>Asia, South Korea <a href="https://packagist.kr">packagist.kr</a></li>
+  <li>South America, Brazil <a href="https://packagist.com.br">packagist.com.br</a></li>
 </ul>
 
 <h3 id="list-packages-all">{{ 'mirrors.running_your_own'|trans }}</h3>