Use Six/Ten Press helper functions to easily register custom post types and taxonomies.

functions.php

<?php

add_action( 'sixtenpress_setup', 'prefix_register_resource_post_type' );
/**
 * Register a resource custom content type with custom labels, icon, and taxonomy.
 * Requires Six/Ten Press 2.1.0.
 */
function prefix_register_resource_post_type() {
	$post_type = 'resource';
	$args      = array(
		'labels'        => array(
			'singular' => __( 'Resource', 'prefix' ),
			'plural'   => __( 'Resources', 'prefix' ),
		),
		'menu_position' => 10,
		'menu_icon'     => 'dashicons-schedule',
		'taxonomies'    => array( 'audience' ),
	);
	sixtenpress_register_post_type( $post_type, $args );
}

add_action( 'sixtenpress_setup', 'prefix_register_resource_taxonomy' );
/**
 * Register an audience taxonomy with custom labels for use with the resource content type.
 * Requires Six/Ten Press 2.1.0
 */
function prefix_register_resource_taxonomy() {
	$taxonomy = 'audience';
	$args     = array(
		'labels' => array(
			'singular' => __( 'Audience', 'prefix' ),
			'plural'   => __( 'Audiences', 'prefix' ),
		),
	);
	sixtenpress_register_taxonomy( $taxonomy, 'resource', $args );
}