nag.php

<?php 
add_action( 'admin_menu', 'seed_cspv5_firstrun_nag' );
function seed_cspv5_firstrun_nag(){
		update_option('seed_cspv5_per', 'lp');
	update_option('seed_cspv5_a', true);
  $msg = '<h2>Here\'s a quick video walk through to get you started. </h2><iframe width="560" height="315" src="https://www.youtube.com/embed/aMSPV4iY6Tc?rel=0" frameborder="0" allowfullscreen></iframe><p>This site will be deleted automatically in 24 hours. Got a question? Use the Question Icon in the bottom right of the screen.</p>';
  if(isset($_GET['firstrun'])){
    add_settings_error(
        null,
        'seed_cspv5_api_nag',
        $msg,
        'updated'
    );
  }
}