newsupernova/app/code/Magefan/Blog/etc/adminhtml/menu.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © 2015-2017 Ihor Vansach (ihor@magefan.com). All rights reserved.
 * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
 *
 * Glory to Ukraine! Glory to the heroes!
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Backend:etc/menu.xsd">
    <menu>
        <add id="Magefan_Blog::elements" title="Blog" module="Magefan_Blog" parent="Magento_Backend::content" sortOrder="10"  resource="Magefan_Blog::elements"/>

        <add id="Magefan_Blog::post" title="Posts" module="Magefan_Blog" parent="Magefan_Blog::elements" sortOrder="10" action="blog/post" resource="Magefan_Blog::post"/>

        <add id="Magefan_Blog::category" title="Categories" module="Magefan_Blog" parent="Magefan_Blog::elements" sortOrder="20" action="blog/category" resource="Magefan_Blog::category"/>

        <add id="Magefan_Blog::import" title="Import" module="Magefan_Blog" parent="Magefan_Blog::elements" sortOrder="30" action="blog/import" resource="Magefan_Blog::import"/>

        <add id="Magefan_Blog::config_blog" title="Configuration" module="Magefan_Blog" parent="Magefan_Blog::elements" sortOrder="40" action="adminhtml/system_config/edit/section/mfblog" resource="Magefan_Blog::config_blog"/>
    </menu>
</config>