add basic atlas help

atlas/templates/atlas/base.html

@@ -12,7 +12,8 @@
         <a href="{% url 'atlas:series_view' %}">Series</a> /
         <a href="{% url 'atlas:categories_list' %}">Categories</a> /
         <a href="{% url 'atlas:case_create' %}" title="Create a new atlas case">Create Case</a> /
-        <a href="{% url 'atlas:series_create' %}" title="Create a new image series">Create Series</a>
+        <a href="{% url 'atlas:series_create' %}" title="Create a new image series">Create Series</a> /
+        <a href="{% url 'atlas:help' %}" title="View the atlas help pages">Help</a>
     {% endif %}
     {% comment %} </br>
 Questions by:

atlas/templates/atlas/help.html

@@ -0,0 +1,23 @@
+{% extends 'atlas/base.html' %}
+
+{% block content %}
+
+    <h2>Anatomy of the Atlas</h2>
+
+    The atlas consists of a number of different costituents.
+
+    <h3>Series</h3>
+    <p>A series is a stack of images. They should consist of a single modality, and be of the same body part and aquired at the same time. For example, a CT scan of the head, or an MRI of the knee. </p>
+
+    <p>Each series can be associated with an arbitary number of cases.</p>
+
+    <h3>Cases</h3>
+    <p>A case is the basic unit of the atlas. It should consist of one or more series, and be associated with a single patient.</p>
+
+    <p>Additional information can be added to a case, such as history, description, report, diagnosis and differential.</p>
+
+    <h3>Collection</h3>
+    <p>A collection is a group of cases. It can be used to group cases. Cases can below to more than one group.</p>
+
+
+{% endblock %}