Display teaser with Read-more link
When editing your page (as a “child” page to “Articles”), above the editing area there is a tab called “Body”, and at the right end of this area, a green + icon, and red – icon. Click on the green + icon.
In the pop-up, “Add part”, give the name extended, and click “add”.
Put your small introduction (“teaser”) in the “Body” part; put the rest of your article in the “extended” part.
Adding the “Read More” link
On your “Articles” page, you can set the link for “Read more…” or “Continue Reading →” or whatever you like. The code should look like this at the top of the “entry” DIV on the Articles page:
<h3><?php echo $article->link($article->title); ?></h3> <?php echo $article->content(); ?> <?php if ($article->hasContent('extended')) echo $article->link('Continue Reading…'); ?>
This should automatically make the “read more” link for the full article. You can put whatever like for the link text in here:
<?php if ($article->hasContent('extended')) echo $article->link('PUT YOUR LINK TEXT HERE'); ?>