Craft CMS: prev + next entry links

<ul class="prev-next cf">
	{% set params = {section: 'blog', order: 'postDate desc', limit: null} %}
	{% set entry_prev = entry.getPrev(params) %}
	{% set entry_next = entry.getNext(params) %}		
	{% if entry_prev %}<li class="prev"><a title="{{ entry_prev.title }}" href="{{entry_prev.url}}">Previous Post</a></li>{% endif %}
	{% if entry_next %}<li class="next"><a title="{{ entry_next.title }}" href="{{entry_next.url}}">Next Post</a></li>{% endif %}
</ul>