diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54c58d0..730025a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
-simplyFavicon 2021.08.18
+2021.09.02
+- clean up code
+- add dcstore.xml pre-release file
+
+2021.08.18
  * update license
 
-simplyFavicon 2011.04.08
+2011.04.08
  * first version
\ No newline at end of file
diff --git a/README.md b/README.md
index 4c0b9f9..eea68e2 100644
--- a/README.md
+++ b/README.md
@@ -2,22 +2,22 @@
 
 ## WHAT IS simplyFavicon ?
 
-simplyFavicon is a plugin for the open-source 
+_simplyFavicon_ is a plugin for the open-source 
 web publishing software called Dotclear.
 
-.
+It adds a favicon to your blog.
 
 ## REQUIREMENTS
 
- simplyFavicon requires: 
+_simplyFavicon_ requires: 
 
-  * Administrator permissions
-  * Dotclear 2.18 
-  * A readable public directory.
+ * Administrator permissions
+ * Dotclear 2.19
+ * A readable public directory.
 
 ## USAGE
 
-First install simplyFavicon, manualy from a zip package or from 
+First install _simplyFavicon_, manualy from a zip package or from 
 Dotaddict repository. (See Dotclear's documentation to know how do this)
 
 Add un file called ''favicon.xxx'' where xxx could be ico, jpg, png, 
diff --git a/_admin.php b/_admin.php
index fe9b773..b424947 100644
--- a/_admin.php
+++ b/_admin.php
@@ -1,15 +1,15 @@
 <?php
-# -- BEGIN LICENSE BLOCK ----------------------------------
-#
-# This file is part of simplyFavicon, a plugin for Dotclear 2.
-# 
-# Copyright (c) 2009-2021 Jean-Christian Denis and contributors
-# 
-# Licensed under the GPL version 2.0 license.
-# A copy of this license is available in LICENSE file or at
-# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
-#
-# -- END LICENSE BLOCK ------------------------------------
+/**
+ * @brief simplyFavicon, a plugin for Dotclear 2
+ * 
+ * @package Dotclear
+ * @subpackage Plugin
+ * 
+ * @author Jean-Christian Denis
+ * 
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 
 if (!defined('DC_CONTEXT_ADMIN')) {
     return;
@@ -32,7 +32,7 @@ class adminSimplyFavicon
         '</p>' .
         '</div>';
     }
-    
+
     public static function adminBeforeBlogSettingsUpdate($blog_settings)
     {
         $blog_settings->system->put('simply_favicon', !empty($_POST['simply_favicon']));
diff --git a/_define.php b/_define.php
index 5fb087e..3cf0583 100644
--- a/_define.php
+++ b/_define.php
@@ -1,24 +1,31 @@
 <?php
-# -- BEGIN LICENSE BLOCK ----------------------------------
-#
-# This file is part of simplyFavicon, a plugin for Dotclear 2.
-# 
-# Copyright (c) 2009-2021 Jean-Christian Denis and contributors
-# 
-# Licensed under the GPL version 2.0 license.
-# A copy of this license is available in LICENSE file or at
-# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
-#
-# -- END LICENSE BLOCK ------------------------------------
+/**
+ * @brief simplyFavicon, a plugin for Dotclear 2
+ * 
+ * @package Dotclear
+ * @subpackage Plugin
+ * 
+ * @author Jean-Christian Denis
+ * 
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 
 if (!defined('DC_RC_PATH')){
     return;
 }
- 
+
 $this->registerModule(
     "Simply favicon",
     "Multi-agents favicon",
     "Jean-Christian Denis",
-    '2021.08.18',
-    'admin'
+    '2021.09.02',
+    [
+        'requires' => [['core', '2.19']],
+        'permissions' => 'admin',
+        'type' => 'plugin',
+        'support' => 'https://github.com/JcDenis/simplyFavicon',
+        'details' => 'http://plugins.dotaddict.org/dc2/details/simplyFavicon',
+        'repository' => 'https://raw.githubusercontent.com/JcDenis/simplyFavicon/master/dcstore.xml'
+    ]
 );
\ No newline at end of file
diff --git a/_prepend.php b/_prepend.php
index 31ae496..0a9e229 100644
--- a/_prepend.php
+++ b/_prepend.php
@@ -1,15 +1,15 @@
 <?php
-# -- BEGIN LICENSE BLOCK ----------------------------------
-#
-# This file is part of simplyFavicon, a plugin for Dotclear 2.
-# 
-# Copyright (c) 2009-2021 Jean-Christian Denis and contributors
-# 
-# Licensed under the GPL version 2.0 license.
-# A copy of this license is available in LICENSE file or at
-# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
-#
-# -- END LICENSE BLOCK ------------------------------------
+/**
+ * @brief simplyFavicon, a plugin for Dotclear 2
+ * 
+ * @package Dotclear
+ * @subpackage Plugin
+ * 
+ * @author Jean-Christian Denis
+ * 
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 
 if (!defined('DC_RC_PATH')){
     return;
diff --git a/_public.php b/_public.php
index 06cd122..f22b14b 100644
--- a/_public.php
+++ b/_public.php
@@ -1,15 +1,15 @@
 <?php
-# -- BEGIN LICENSE BLOCK ----------------------------------
-#
-# This file is part of simplyFavicon, a plugin for Dotclear 2.
-# 
-# Copyright (c) 2009-2021 Jean-Christian Denis and contributors
-# 
-# Licensed under the GPL version 2.0 license.
-# A copy of this license is available in LICENSE file or at
-# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
-#
-# -- END LICENSE BLOCK ------------------------------------
+/**
+ * @brief simplyFavicon, a plugin for Dotclear 2
+ * 
+ * @package Dotclear
+ * @subpackage Plugin
+ * 
+ * @author Jean-Christian Denis
+ * 
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
 
 if (!defined('DC_RC_PATH')){
     return;
@@ -27,11 +27,11 @@ class publicSimplyFavicon extends dcUrlHandlers
         'jpg' => 'image/jpeg',
         'mng' => 'video/x-mng'
     );
-    
+
     public static function simplyFaviconUrl($arg)
     {
         global $core;
-        
+
         $mimetypes = self::$mimetypes;
         $public_path = path::real(path::fullFromRoot($core->blog->settings->system->public_path, DC_ROOT)) . '/favicon.';
 
@@ -48,17 +48,17 @@ class publicSimplyFavicon extends dcUrlHandlers
             exit;
         }
     }
-    
+
     public static function publicHeadContent($core)
     {
         if (!$core->blog->settings->system->simply_favicon){
             return;
         }
-        
+
         $mimetypes = self::$mimetypes;
         $public_path = path::real(path::fullFromRoot($core->blog->settings->system->public_path, DC_ROOT)) . '/favicon.';
         $public_url = $core->blog->url.$core->url->getBase('simplyFavicon') . '.';
-        
+
         // ico : IE6
         if (file_exists($public_path . 'ico') && '?' != substr($core->blog->url, -1)) {
             echo 
diff --git a/dcstore.xml b/dcstore.xml
new file mode 100644
index 0000000..dcbdb3b
--- /dev/null
+++ b/dcstore.xml
@@ -0,0 +1,11 @@
+<modules xmlns:da="http://dotaddict.org/da/">
+<module id="simplyFavicon">
+<name>Simply favicon</name>
+<version>2021.09.02</version>
+<author>Jean-Christian Denis</author>
+<desc>Multi-agents favicon</desc>
+<file>https://github.com/JcDenis/simplyFavicon/releases/download/v2021.09.02/plugin-simplyFavicon.zip</file>
+<da:details>http://plugins.dotaddict.org/dc2/details/simplyFavicon</da:details>
+<da:support>https://github.com/JcDenis/simplyFavicon</da:support>
+</module>
+</modules>
\ No newline at end of file
diff --git a/locales/fr/main.lang.php b/locales/fr/main.lang.php
index 476eb4d..829eb4d 100644
--- a/locales/fr/main.lang.php
+++ b/locales/fr/main.lang.php
@@ -8,6 +8,4 @@
 $GLOBALS['__l10n']['Enable "Simply favicon" extension'] = 'Activer l\'extension "Simply favicon"';
 
 #_admin.php:28
-$GLOBALS['__l10n']['You must place an image called favicon.png or .jpg or .ico into your blog\'s public directory.'] = 'Vous devez placer une image nommée favicon.png, .jpg ou .ico dans le répertoire publique du blog.';
-
-?>
\ No newline at end of file
+$GLOBALS['__l10n']['You must place an image called favicon.png or .jpg or .ico into your blog\'s public directory.'] = 'Vous devez placer une image nommée favicon.png, .jpg ou .ico dans le répertoire publique du blog.';
\ No newline at end of file