Catch Responsive extra slide in Featured Slider

function catchresponsive_demo_slider( $options ) {
    $catchresponsive_demo_slider ='
                                <article class="post hentry slides demo-image displayblock">
                                    <figure class="slider-image">
                                        <a title="Slider Image 1" href="'. esc_url( home_url( '/' ) ) .'">
                                            <img src="http://latraxion.fr/wp-content/uploads/2016/06/atraxion_1500x517px-bannière-web.jpg" class="wp-post-image" alt="Slider Image 1" title="Slider Image 1">
                                        </a>
                                    </figure>
                                    <div class="entry-container">
                                        <header class="entry-header">
                                            <h1 class="entry-title">
                                                <a title="Slider Image 1" href="#"><span>Slider Image 1</span></a>
                                            </h1>
                                        </header>
                                        <div class="entry-content">
                                            <p>Slider Image 1 Content</p>
                                        </div>
                                    </div>
                                </article><!-- .slides -->

                                <article class="post hentry slides demo-image displaynone">
                                    <figure class="Slider Image 2">
                                        <a title="Slider Image 2" href="'. esc_url( home_url( '/' ) ) .'">
                                            <img src="http://latraxion.fr/wp-content/uploads/2016/06/bannière_web_1500x517px_v1.jpg" class="wp-post-image" alt="Slider Image 2" title="Slider Image 2">
                                        </a>
                                    </figure>
                                    <div class="entry-container">
                                        <header class="entry-header">
                                            <h1 class="entry-title">
                                                <a title="Slider Image 2" href="#"><span>Slider Image 2</span></a>
                                            </h1>
                                        </header>
                                        <div class="entry-content">
                                            <p>Slider Image 2 Content</p>
                                        </div>
                                    </div>
                                </article><!-- .slides -->

                                <article class="post hentry slides demo-image displaynone">
                                    <figure class="Slider Image 3">
                                        <a title="Slider Image 3" href="'. esc_url( home_url( '/' ) ) .'">
                                            <img src="'. get_template_directory_uri() . '/images/gallery/slider2-1200x514.jpg" class="wp-post-image" alt="Slider Image 3" title="Slider Image 3">
                                        </a>
                                    </figure>
                                    <div class="entry-container">
                                        <header class="entry-header">
                                            <h1 class="entry-title">
                                                <a title="Slider Image 3" href="#"><span>Slider Image 3</span></a>
                                            </h1>
                                        </header>
                                        <div class="entry-content">
                                            <p>Slider Image 3 Content</p>
                                        </div>
                                    </div>
                                </article><!-- .slides --> ';


    return $catchresponsive_demo_slider;
}