Fixing template documentation due recent Twig changes

plugin/show_user_info/template.tpl

@@ -1,31 +1,29 @@
 {#
-    This is a Chamilo plugin using Smarty you can use handy shorcuts like:
+    This is a Chamilo plugin using Twig you can use these handy shorcuts like:
     
     1. Shortcuts 
     
-    $_p = url chamilo paths
+    _p = url chamilo paths
-    $_u = user information of the current user
+    _u = user information of the current user
     
     2. i18n
     
     You can use i18n variables just use this syntax:
     
-    {"HelloWorld"|get_lang}
+    {{"HelloWorld"|get_lang}}
     
     Now you can add your variables in the main/lang/english/ or main/lang/spanish/ for example in spanish:
     $HelloWorld = "Hola Mundo";
     
     3. Portal settings    
-    
         You can access the portal settings using:
-        {"siteName"|api_get_setting}
+        {{"siteName"|get_setting}}
-        For more settings check the settings_current database
+        For more settings check the settings_current database table
-        
     4. Read more
-        You can also see more examples in the the main/template/default/layout files
+        You can also see more examples in main/template/default/layout
 #}
 
-{% if show_user_info.show_message is not null %}
+{% if show_user_info.show_message is not null and _u.logged == 1 %}
 <div class="well">
     {{"Welcome"|get_lang}} {{show_user_info.user_info.complete_name}} ({{show_user_info.username}})
     <br />