Update copyright year

Author: carlbennett

src/main.php

@@ -1,7 +1,7 @@
 <?php
 /**
  *  BNETDocs, the documentation and discussion website for Blizzard protocols
- *  Copyright (C) 2003-2020  "Arta", Don Cullen "Kyro", Carl Bennett, others
+ *  Copyright (C) 2003-2021  "Arta", Don Cullen "Kyro", Carl Bennett, others
  *  This file is part of BNETDocs.
  *
  *  BNETDocs is free software: you can redistribute it and/or modify

src/templates/footer.inc.phtml

@@ -9,7 +9,7 @@ use \CarlBennett\MVC\Libraries\Common;
 ?>
     </main>
     <footer class="main-page<?php if (isset($slim_ui) && $slim_ui) { ?> slim<?php } ?>">
-      <p><?php if ( VersionInfo::$version->bnetdocs ) { ?><a href="https://github.com/BNETDocs/bnetdocs-web/tree/<?php echo VersionInfo::$version->bnetdocs[1]; ?>" rel="external" title="Contribute to the BNETDocs source code!">BNETDocs <?php echo VersionInfo::$version->bnetdocs[0]; ?></a><?php } else { ?>(Development)<?php } ?> &copy; 2003-2020 BNETDocs | <a href="<?php echo Common::relativeUrlToAbsolute("/legal"); ?>" rel="external" title="BNETDocs Legal Policies">Legal page</a></p>
+      <p><?php if ( VersionInfo::$version->bnetdocs ) { ?><a href="https://github.com/BNETDocs/bnetdocs-web/tree/<?php echo VersionInfo::$version->bnetdocs[1]; ?>" rel="external" title="Contribute to the BNETDocs source code!">BNETDocs <?php echo VersionInfo::$version->bnetdocs[0]; ?></a><?php } else { ?>(Development)<?php } ?> &copy; 2003-2021 BNETDocs | <a href="<?php echo Common::relativeUrlToAbsolute("/legal"); ?>" rel="external" title="BNETDocs Legal Policies">Legal page</a></p>
       <p style="font-size:smaller;">
 BNETDocs is a documentation and discussion website for Blizzard Entertainment's
 Battle.net&trade; and in-game protocols. You hereby acknowledge that BNETDocs