Joomla plugin XML file

<?xml version="1.0" encoding="utf-8"?>
<install version="1.5" type="plugin" group="content">
    <name>Content - Plugin name</name>
    <author>Some author</author>
    <creationDate>February 2012</creationDate>
    <copyright>(C) 2012 - someaddress.com</copyright>
    <license>http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL</license>
    <authorEmail>admin@someaddress.com</authorEmail>
    <authorUrl>www.someaddress.com</authorUrl>
    <version>1.0</version>
    <description>PLUGIN DESC</description>
    <files>
        <filename plugin="pluginname">pluginname.php</filename>
        <folder>pluginname/elements</folder>
        <folder>pluginname/helpers</folder>
        <folder>pluginname/assets</folder>
    </files>
    <languages>
        <language tag="en-GB">en-GB.plg_content_pluginname.ini</language>
    </languages>
</install>