templates/show.html

{% extends 'layout.html' %}

{% block content %}

<h1>{{contact.first}} {{contact.last}}</h1>
<div>
    <div>Phone: {{contact.phone}}</div>
    <div>Email: {{contact.email}}</div>
</div>
<p>
    <a href="/contacts/{{ contact.id }}/edit">Edit</a>
    <a href="/contacts">Back</a>
</p>

{% endblock %}