mason-8.x-1.x-dev/modules/mason_example/mason_example.module

<?php

/**
 * @file
 * Provides Mason examples.
 */

/**
 * Implements hook_help().
 */
function mason_example_help($route_name) {
  if ($route_name == 'help.page.mason_example') {
    $output = file_get_contents(dirname(__FILE__) . '/README.md');
    return blazy()->markdown($output);
  }
  return '';
}