add more category for post - boston theme

functions.php

function boston_posted_on() {
	$time_string = '<time class="entry-date published updated" datetime="%1$s">%2$s</time>';
	if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) ) {
		$time_string = '<time class="entry-date published" datetime="%1$s">%2$s</time>';
	}

	$time_string = sprintf( $time_string,
		esc_attr( get_the_date( 'c' ) ),
		esc_html( get_the_date() )
	);

	$posted_on = sprintf(
		esc_html_x( '%s', 'post date', 'boston' ),
		'<span class="entry-date">' . $time_string . '</span>'
	);
	$byline = sprintf(
		esc_html_x( '%s', 'post author', 'boston' ),
		'<span class="author vcard"><a class="url fn n" href="' . esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ) . '">' . esc_html( get_the_author() ) . '</a></span>'
	);


	$category = get_the_category();
	$cate = '';
	if ( $category ) {
		$cate = '<span class="entry-cate">';
		foreach($category as $cat) {
		    $cate .= '<a class="entry-category" href="'.esc_url( get_category_link($cat->term_id ) ).'">'.$cat->cat_name.'</a> ';
		}

		$cate .= '</span>';
	}


	echo $cate.$byline.$posted_on;
	if ( ! post_password_required() && ( comments_open() || get_comments_number() ) ) {
		echo '<span class="comments-link">';
		echo '<i class="genericon genericon-comment"></i>';
		comments_popup_link( '0', '1', '%' );
		echo '</span>';
	}

}