single-promo.php here promo is post type

// single-promo.php

<?php get_header();?>
		<!-- menu area start -->
		<div class="menu_area">
			<div class="container">
				<div class="row">
					<div class="col-md-12 col-sm-12 col-lg-12">
						<div class="main_menu">
							<?php wp_nav_menu( array( 'theme_location' => 'bishop_menu','menu_class'=> '','menu_id' => 'nav','echo'  => true, ) ); ?>
						</div>
					</div>
				</div>
			</div>
		</div>
		<!-- menu area end -->


		<div class="text-content-area">
			<div class="container">
				<div class="row">

					<div class="col-md-12 col-sm-12 col-lg-12">

						<div class="promo_one">
							<div class="">
								<h2><?php the_title();?></h2>
								<?php the_excerpt();?>
							</div>
							<div class="promo_one_info">
								<?php comments_template();?>
							</div>
							<div class="promo_person_img">
								<?php  the_post_thumbnail('promo_img_size', array('class' => 'promo_portfolio')); ?>
							</div>
						</div>

					</div>


				</div>
			</div>
		</div>




	<?php get_footer();?>