http451.module

<?php

/**
 * @file
 * Contains the hook_help() function.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function http451_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.censorship_http451':
      return t(' <h3> About </h3><p>This Drupal module implements http 451 handling as defined by <a href="https://tools.ietf.org/html/rfc7725">RFC 7725</a></p>
    ');
  }
}