Update zh_CN, thanks to quqibing

language/zh_CN/help/help_add_photos.html

@@ -7,10 +7,10 @@
 <p class="nextStepLink"><a href="admin.php?page=photos_add&section=direct">使用直接上传</a></p>
 
 <ul>
-  <li>You can find many <strong>applications</strong>, for desktop or mobile devices, to add photos in your Piwigo.</li>
+  <li>有许多桌面或手机<strong>应用程序</strong>可以向Piwigo中添加图片.</li>
 </ul>
 
-<p class="nextStepLink"><a href="admin.php?page=photos_add&section=applications">Go to applications</a></p>
+<p class="nextStepLink"><a href="admin.php?page=photos_add&section=applications">应用程序列表</a></p>
 
 <div id="helpSynchro">
 <ul>