verifying your website through google using meta tag

Trying to verify https://mungbeansusa.com/ website through google using these instructions, where do I find the homepage in my wordpress dashboard? Thanks for any and all help.
M B

Virtue: header.php
<?php
/*
Empty on purpose.

– Force plugins to stop stating incorrect errors –
<?php wp_head(); ?>
*/

Wherever I put the meta tag, google does not recognize it.