Update instructions for updating Header Tags SEO version 3.0 to
Header Tags SEO V 3.0.2 by Jack_mcs

1) Upload the following files:

catalog/includes/header_tags.php
catalog/includes/functions/header_tags.php
admin/header_tags_seo.php
admin/includes/functions/header_tags.php
admin/includes/languages/english/header_tags_seo.php
