Cacher is the code snippet organizer for pro developers

<?php
//don't add again 


/**
 *
 * Allowed html in get_the_content_limit
 *
 */
function yourprefix_allowed_content_limit_tags() {
	return '<strong>,<em>,<i>,<ul>,<ol>,<li>,<a>'; 
}
add_filter( 'get_the_content_limit_allowedtags', 'yourprefix_allowed_content_limit_tags' );


/**  
 * 
 * Close open tags in content limit excerpts
 * force_balance_tags();
 * 
 */
function yourprefix_balance_tags_content_limit( $content ) {
	
	$content = force_balance_tags( html_entity_decode( wp_trim_words( htmlentities( $content ) ) ) );
		
	return $content . '<p><a class="more-link" href="' . get_permalink() . '">[Continue Reading]</a></p>';
	
}
add_filter( 'the_content_limit', 'yourprefix_balance_tags_content_limit' );