How to add One Page template in Twenty thirteen theme wordpress?

Add One Page template in Twenty thirteen theme wordpress.

Here i will tell you that how to create one page template in twenty thirteen theme
Step 1: create a folder inside theme folder themes/twentythirteen/
Like : themes/twentythirteen/page-templates

Step 2:  Create a file named one-page.php inside page-templates folder

Step 3: Copy and paste this code in your one-page.php page

<?php
/**
 * Template Name: One Page
 *
 * Author Olivia Hoback
 * www.olivia.nu
 * @package WordPress
 * @subpackage Twenty_Thirteen
 * @since Twenty Thirteen 1.0
 */

get_header(); ?>

<div id="primary" class="content-area">
        <div id="content" class="site-content" role="main">

<?php while ( have_posts() ) : the_post(); ?>

<div class="col-lg-12 inner">
                    <?php if ( has_post_thumbnail() && ! post_password_required() ) : ?>
                    <div class="entry-thumbnail">
                    <?php the_post_thumbnail('full', array('class' => 'img-responsive featured')); ?>
                    </div>
                    <?php endif; ?>
                    <span><?php the_content(); ?><?php wp_link_pages( array( 'before' => '<div class="page-links"><span class="page-links-title">' . __( 'Pages:', 'twentythirteen' ) . '</span>', 'after' => '</div>', 'link_before' => '<span>', 'link_after' => '</span>' ) ); ?></span>
                    <footer class="entry-meta">
                    <?php edit_post_link( __( 'Edit', 'twentythirteen' ), '<span class="edit-link">', '</span>' ); ?>
                    </footer><!-- .entry-meta -->
                    <?php comments_template(); ?>
                    </div>
                    <?php endwhile; ?>
        </div><!-- #content -->
</div><!-- #primary -->


<?php get_footer(); ?>


Step 4:  Now go to your admin and click on add new page

Step5: On the right side bar under Page Attribute -> Template dropdown , Choose One page template

See your page now
Done :P