Move all pages into their own directory

There are a lot of pages. It seems like a good idea to keep them in one place,
so they don’t get mixed up with partials and layouts.

app/templates/views/signedout.html

@@ -0,0 +1,25 @@
+{% extends "admin_template.html" %}
+
+{% block page_title %}
+GOV.UK Notify | Get started
+{% endblock %}
+
+{% block content %}
+
+<div class="grid-row">
+	<div class="column-two-thirds">
+		<h1 class="heading-xlarge">GOV.UK Notify</h1>
+
+		<p>Use GOV.UK Notify to send notifications by text message, email and letter.</p>
+		<p>We're making it easy to keep your users informed.</p>
+		<p>If you work for a UK government department or agency you can set up a test account now.</p>
+
+		<a class="button" href="register" role="button">Set up an account</a>
+
+		<!-- <h2 class="heading-large">Used GOV.UK Notify before?</h2> -->
+
+		<p>If you've used GOV.UK Notify before, <a href="sign-in">sign in to your account</a>.</p>
+	</div>
+</div>
+
+{% endblock %}