Translate homepage

[Neilsen]

Hello I'm using prestashop 1.7.6 and I would like to translate my hompage. But I have noticed that the content of the hompage is created through a module called 'Itcustomhtml' in its 'SampleDataHtml.php' I want to translate it in french but I don't know how to proceed. In tpl file, it's pretty easy just need to add {l s="my word" d="Shop.Mymodule"}. But since the content is generated in an sql thetranslation is not working. Someone can help me achieved this please?

 

This is a sample of my SampleDataHtml.php.

I would like to translate the <h3> tag and <p> tag.Can someone  help please?

<?php
/**
* 2015-2018 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/afl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to [email protected] so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
* @author    PrestaShop SA <[email protected]>
* @copyright 2015-2018 PrestaShop SA
* @license   http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class SampleDataHtml
{
	public function initData($base_url)
	{
		$content_block1 = '
			<div class="container">
			<div class="top_bennar_sec clearfix">
			<div class="col-md-6 push-md-6 hidden-sm-down"><img src="{static_block_url}modules/itcustomhtml/views/img/about-us.png" alt="" class="img-responsive" width="auto" height="auto" /></div>
			<div class="col-md-6 pull-md-6">
			<h3 class="sec-heading">Our chef d oeuvre ... yummie!</h3>
			<p>Portuguese sweet bread is a bread made with milk, sugar, eggs, yeast, flour and sometimes lemon peel to produce a subtly sweet lightly textured loaf or rolls.Portuguese sweet bread is a bread made with milk, sugar, eggs, yeast, flour.</p>
			<ul class="top-banner-icn">
			<li><svg viewbox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path d="m183.464844 95.730469c2.628906 0 5.207031-1.070313 7.070312-2