Reply To: Changing the default "H" value for the title section

You need to create a comments.php file in the child theme with the following code

<?php
if( ! empty( $_SERVER['SCRIPT-FILENAME'] ) && basename( $_SERVER['SCRIPT-FILENAME']) == 'comments.php' ) {
	die();
}
if ( post_password_required() )
	return;
?>
<div id="comments" class="comments-area">
	<?php if ( have_comments() ) : ?>
		<h2 class="comments-title">
			<?php
				printf( wp_kses( _nx( 'One thought on &ldquo;%2$s&rdquo;', '%1$s thoughts on &ldquo;%2$s&rdquo;', get_comments_number(), 'comments title', 'woodmart' ), array() ),
					number_format_i18n( get_comments_number() ), '<span>' . get_the_title() . '</span>' );
			?>
		</h2>
		<ol class="comment-list">
			<?php
				wp_list_comments( array(
					'style'       => 'ol',
					'short_ping'  => true,
					'avatar_size' => 74,
				) );
			?>
		</ol><!-- .comment-list -->
		<?php
			if ( get_comment_pages_count() > 1 && get_option( 'page_comments' ) ) :
		?>
		<nav class="navigation comment-navigation" role="navigation">
			<h1 class="screen-reader-text section-heading"><?php esc_html_e( 'Comment navigation', 'woodmart' ); ?></h1>
			<div class="nav-previous"><?php previous_comments_link( esc_html__( '&larr; Older Comments', 'woodmart' ) ); ?></div>
			<div class="nav-next"><?php next_comments_link( esc_html__( 'Newer Comments &rarr;', 'woodmart' ) ); ?></div>
		</nav><!-- .comment-navigation -->
		<?php endif; // Check for comment navigation ?>
		<?php if ( ! comments_open() && get_comments_number() ) : ?>
			<p class="no-comments"><?php esc_html_e( 'Comments are closed.' , 'woodmart' ); ?></p>
		<?php endif; ?>
	<?php endif; // have_comments() ?>
	<?php comment_form( array(
		'title_reply_before' => '<h4 id="reply-title" class="comment-reply-title">',
		'comment_notes_after' => '',
		'title_reply_after' => '</h4>'
	)); ?>

</div><!-- #comments -->