To add to MotSmart’s reply...
In the ModxHost template this is located near the bottom of the html, here is the code:
<h1><a id="logo" href="[~[(site_start)]~]" title="[(site_name)]">[(site_name)]</a></h1>
The [~[(site_start)]~] part is that creates the link to the site start page. Wayfinder uses the site_url parameter to set the Home link. To modify the template and follow the Wayfinder method you need to edit the line above to:
<h1><a id="logo" href="[(site_url)]" title="[(site_name)]">[(site_name)]</a></h1>
Notice the change of the variable to site_url and the removal of the [~ ~] surrounding tags. Hope this helps