I just responded to another member with the same question so I will add the same response here.
You can add your own logo by editing your header.php file.
You should first create a child theme and then use that to make your changes. Either way you go what your looking for is this.
<div id="site-meta">
<h1 id="site-title">
<a href="<?php echo esc_url( home_url() ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a>
</h1>
<p></p>
<h2 id="site-description"<?php echo $space_class; ?>>
<?php bloginfo( 'description' ); ?>
</h2><p></p>
<a href="#" id="more-site" class="btn btn-default btn-lg"><?php _e( 'See More', 'arcade' ); ?></a>
</div>
You will want to change it to something like this.
<div id="site-meta">
<h1 id="site-title">
<img src="https://yourwebsiteaddress.com/wp-content/uploads/logo2.png">
<!-- <a href="<?php echo esc_url( home_url() ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a> -->
</h1>
<p></p>
<h2 id="site-description"<?php echo $space_class; ?>>
<?php bloginfo( 'description' ); ?>
</h2><p></p>
<a href="#" id="more-site" class="btn btn-default btn-lg"><?php _e( 'See More', 'arcade' ); ?></a>
</div>
Please notice the <!– –> around the 4th line.
