Hyperlink Predetermined Text on Every Post

mikeshowlingdeals.com

While

function add_before_content($content) {
return ‘The links in the post below may be affiliate links.
‘.$content;
}
add_filter(‘the_content’, add_before_content);

shows the same text on every post, hyperlinked text only appears after clicking on a post title to go directly to the post. How do I get the predetermined text to be hyperlinked on all pages?

Also, how do I do a line break on all pages? Just like the hyperlink, the line break only appears after clicking on a post title. Thanks.