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// if link is in params, then simple:
<a href="<?php echo $item->link; ?>">Read More</a>

// Otherwise to build link to article:
<a href="<?php echo JRoute::_('index.php?view=article&id=' . $item->id . '&catid=' . $item->catid); ?>">READ MORE <i class="fa fa-long-arrow-right"></i></a>

// For image params:
<a href="<?php echo $link->{$link->type}; ?>"><?php echo $image->alt; ?></a>

// general param links ??
$urls    = json_decode($this->item->urls);