Sort specific category to display alphabetically.

gistfile1.aw

<?php

add_action( 'pre_get_posts', 'be_sort_articles_category' );
/**
 * Sort 'articles' category by name
 * 
 * @author Bill Erickson
 * @link http://www.billerickson.net/customize-the-wordpress-query/
 * @param object $query data
 *
 */
function be_sort_articles_category( $query ) {

	if( $query->is_main_query() && $query->is_category( 'articles' ) ) {
		$query->set( 'orderby', 'title' );
		$query->set( 'order', 'ASC' );
	}

}